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 [Search a list of Patent Appplications for class 220]   CLASS 220,RECEPTACLES
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SECTION I - CLASS DEFINITION

This is the residual class of receptacles comprised of a peripheral wall with at least one closed end, and having an access opening which may be an open end of the receptacles, or which may be provided in the peripheral wall or closed end of the receptacle. Receptacles of this class type must function, by disclosure, to hold contents which in turn are to be eventually removed from the receptacle. This is also the residual locus for closures for receptacles. This is also the residual locus for attachments for receptacles.

SECTION II - LINES WITH OTHER CLASSES AND WITHIN THIS CLASS

Some specific art structures remain in this class which do not function by disclosure to hold contents which in turn are to be eventually removed from the receptacle; particularly those in subclasses 2.1+, subclasses 3.2+, and some electrical and sectional housings.

Designs for receptacles are in the design classes. See References to Other Classes, below.

For other receptacles, see References to Other Classes, below.

See the Notes to subclasses 2.1+ of this class (220) for the distinction between the envelopes, boxes, and housings for electric lamps, discharge devices, and similar devices in Class 174 and those in other classes, and the Notes to subclasses 3.2+ of this class (220) for the distinction between the boxes and housings for electrical devices in Class 174, and those in other classes.

See the Notes to subclasses 2.1+ of this class (220) for the distinction between the envelopes, boxes and housings for electric lamp and discharge devices which are in Class 313 and those in other classes.

SECTION III - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

4, Baths, Closets, Sinks, and Spittoons,   for receptacles of that type.
15, Brushing, Scrubbing, and General Cleaning,   subclasses 257.05+ for a receptacle which is particularly constructed to facilitate loading of an applicator; including indented subclasses 257.07+ for inkwells.
16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclass 110.5 , and the notes thereto, for handles which also serve as receptacles.
16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 110+ for handles, and subclasses 128+ for hinges.
27, Undertaking,   particularly subclasses 2+ for coffins.
30, Cutlery,   subclass 400 , for can openers.
34, Drying and Gas or Vapor Contact With Solids,   particularly subclasses 233 and 237+ for drying receptacles.
40, Card, Picture, or Sign Exhibiting,   subclasses 306+ for cans with labels thereon.
70, Locks,   subclasses 63+ and 77+ for receptacle and closure locks where no particular structure of the receptacle is involved.
72, Metal Deforming,   for manufacture of a sheet metal container by mere plastic deformation, with or without cutting.
92, Expansible Chamber Devices,   subclasses 169+ for a detailed cylinder or working chamber or closure therefor for an expansible chamber device. See References to Other Classes, in Class 92, in the Search Class note for Class 220 for a further discussion of the relationship between Class 92 and Class 220.
99, Foods and Beverages: Apparatus,   subclasses 428 , 430-433 and 439 for cooking molds of particular application.
109, Safes, Bank Protection, or a Related Device,   for safes.
119, Animal Husbandry,   for aquariums, nests, feed bags, etc.
122, Liquid Heaters and Vaporizers,   for a closed or pressurized liquid heater or vaporizer, subclass 19.2 for a stand boiler (e.g., water heater, etc.) that provides hot water for domestic or household use (e.g., cooking, cleaning, washing, bathing, space heating, etc.) that may be in other than a house or home (e.g., apartment building, office building, restaurant, laundry, recreational vehicle, etc.) and a casing for the stand boiler or an external tank therefor.
126, Stoves and Furnaces,   subclasses 373.1 through 390.1for an open-top liquid heating vessel that may include a lid.
124, Mechanical Guns and Projectors,   subclasses 41.1 and 45+ for projectile holders and carriers and magazines.
131, Tobacco,   subclasses 231+ for tobacco users" appliance combined with ash receiving receptacles.
137, Fluid Handling,   for tanks in combination with other fluid handling means, especially subclass 268 for receptacles holding a supply of solids to be mixed with a liquid.
139, Textiles: Weaving,   subclasses 389+ for woven bags.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means,   subclasses 331+ for funnels.
150, Purses, Wallets, and Protective Covers,   for a purse, wallet, card container or coin container used to carry money, credit cards or items of identification on the person.
156, Adhesive Bonding and Miscellaneous Chemical Manufacture,   subclass 262 for methods of making closures involving apply liners thereto by a punching and laminating operation.
166, Wells,   subclasses 162+ and the subclasses there noted for receptacles specialized to use in wells.
169, Fire Extinguishers,   particularly subclasses 30+ for receptacles for holding and dispensing fire extinguishing materials.
174, Electricity: Conductors and Insulators,   subclasses 17+ and 50+ and the subclasses specified in the Notes to the definition of these subclasses for boxes and housings which involve electrical features. See Lines With Other Classes and Within This Class for a discussion of envelopes, boxes, and housings for electric lamps, discharge devices, and similar devices, and the line between Class 220, 174, and other classes.
190, Trunks and Hand-Carried Luggage,   for receptacles of that description.
200, Electricity: Circuit Makers and Breakers,   subclasses 61.62+ for switches combined with closure members, locks and letter boxes.
206, Special Receptacle or Package,   appropriate subclasses, for a container particularly configured to hold a specific article or material-including an article (s) or material (s) put up as a mercantile unit. See subclasses 139+ for a portable segregating carrier for plural cylindrical type beverage containers and subclasses 499 through 520 for containers with nesting or stacking features.
209, Classifying, Separating, and Assorting Solids,   subclasses 233+ particularly subclasses 248+, 259, 376, and 377, for sifting screens for coal buckets and similar receptacles.
211, Supports: Racks,   subclasses 71.01+ for receptacle support type.
215, Bottles and Jars,   for receptacles of that description.
217, Wooden Receptacles,   for receptacles of that material.
219, Electric Heating,   appropriate subclasses for electrically heated vessels and ovens.
221, Article Dispensing,   appropriate subclasses for article dispensing receptacles not otherwise provided for, and see the class definition of Class 221 for identification and explanation of those features which are considered to be dispensing features and to indicate classification of a receptacle structure in Class 221.
222, Dispensing,   and see the notes to the class and subclass definitions for receptacles for dispensing fluent materials.
229, Envelopes, Wrappers, and Paperboard Boxes,   for receptacles of that material. The line between classes 220 and 229 is as follows. Given a claim to a container which includes (1) a paperboard layer and (2) either a rigid metal or a rigid plastic layer, the layer which is considered to be the primary layer or the support layer controls classification, i.e., a container made from metal is classified in Class 220. A container made from rigid or semi-rigid thermoplastic is classified in Class 220 unless it folds in the manner of a paperboard container. A container made from paperboard or a container made from rigid or semi-rigid thermoplastic and which folds in the manner of a paperboard container made from a blank is classified in Class 229. A paper container made of molded pulp or molded paperboard is classified in Class 229. A paperboard container having a metal or thermoplastic closure is classified in Class 229. Any doubt is resolved in favor of Class 220. Examples: (1) If one layer forms a complete container and the other does not, the claim is classified on the basis of the complete container; (2) A paperboard container with a metal foil layer is classified in Class 229; (3) A paperboard container with a thin thermoplastic layer is classified in Class 229; (4) A paperboard container with a removable inner container made of metal or rigid or semi-rigid thermoplastic is classified in Class 229; (5) A metallic or a rigid or semi-rigid thermoplastic container having a removable inner paperboard container is classified in Class 220.
232, Deposit and Collection Receptacles,   for receptacles of that description.
235, Registers,   subclasses 32 and 100 for registering boxes.
239, Fluid Sprinkling, Spraying, and Diffusing,   especially subclasses 302+ for receptacles combined with sprayers receiving their supply from the receptacle, subclasses 34+ for holders for slow diffusers, and subclasses 146+ for vehicular type supply receptacles.
248, Supports,   for receptacle supports. In general, as between the receptacle classes and the support classes, the receptacle classes provide for the combination of a receptacle plus support: except, the support classes will accept a claim to a support combined with a receptacle, wherein the claim (1) nominally recites the receptacle, or (2) recites only so much of the receptacle structure as is needed to cooperate with the support, or (3) recites only those receptacles features which have been modified specifically to cooperate with the support.
249, Static Molds,   appropriate subclasses, for receptacles intended for molding fluent material.
250, Radiant Energy,   subclasses 475.2+ for invisible radiation responsive photographic cassettes, and subclasses 506.1+ for a shielded receptacle for a radioactive source.
266, Metallurgical Apparatus,   subclasses 275+ for receptacles for treating molten material.
273, Amusement Devices: Games,   subclasses 144+ for chance mixing or dispensing devices such as dice cups.
280, Land Vehicles,   subclass 825 for scabbards for skates.
285, Pipe Joints or Couplings,   for seams and joints similar to those used in receptacles.
292, Closure Fasteners,   for closure fasteners.
294, Handling: Hand and Hoist-Line Implements,   subclasses 68.22+ for hoist buckets.
312, Supports: Cabinet Structure,   for cabinets and for receptacle and receptacle combinations not provided for elsewhere. subclasses 35+ provide for removal facilitating structure such as a receptacle having a spring loaded bottom portion which moves in response to the weight of contents.
313, Electric Lamp and Discharge Devices,   subclasses 317+ and the subclasses specified in the Notes thereto for electric lamps and discharge devices which are provided with an envelope, housing or container. See Lines With Other Classes and Within This Class, for further discussion of the line between Class 313 and Class 220.
362, Illumination,   particularly subclasses 159+ for receptacles combined with illumination means.
366, Agitating,   for a fixed or movable receptacle forming or including apparatus to effect agitation.
368, Horology: Time Measuring Systems or Devices,   subclasses 276+ for clock and watch cases.
376, Induced Nuclear Reactions: Processes, Systems, and Elements,   subclass 272 for a storage container system for irradiated core elements.
396, Photography,   appropriate subclasses and particularly subclasses 589+ for dark cabinets and 636+ for trays.
401, Coating Implements With Material Supply,   subclasses 118+ for a supply container in combination with an applicator which is removable therefrom for a coating application independent thereof.
428, Stock Material or Miscellaneous Articles,   appropriate subclasses for a stock material product in the form of a single or plural layer web or sheet, especially subclasses 426+ and 630+ for composites including a glass layer, and subclasses 411+ and 615+ for nonmetallic and metallic composites, respectively, defined in terms of the composition of their components, especially subclass 648 for tin-plate stock. See also Lines With Other Classes and Within This Class for class (428), for the distinction between a stock material and a receptacle.
432, Heating,   subclasses 254+ for a metallic receptacle the sole disclosed use of which is to support work within a furnace to be annealed or carburized by heat.
454, Ventilation,   particularly subclasses 173+ for ventilating chambers for storage of hay, grain, fruit, vegetables, etc.
473, Games Using Tangible Projectile,   subclasses 516+ for a player held and powered, nonmechanical projecting implement for projecting a projectile into the air (e.g., a tennis racket, etc.) which may be combined with a container or package therefor. See especially the Search Notes under subclass 516 for the locations for a flaccid protective cover (e.g., a flaccid case, etc.) for, or for a container or package (e.g., a rigid case, etc.) for, containing such a projecting implement.
588, Hazardous or Toxic Waste Destruction or Containment,   subclass 16 for the process of containing radioactive waste in receptacles, subclasses 249+ for the process of containing hazardous or toxic waste in receptacles.
D6, Furnishings,   for desks, furniture, showcases, etc.
D7, Equipment for Preparing or Serving Food or Drink Not Elsewhere Specified,   subclasses 509+ for drinking vessels; and subclasses 354+ for various food preparation vessels.
D9, Packages and Containers for Goods,   for pertinent subclass(es) as determined by schedule review.
D11, Jewelry, Symbolic Insignia, and Ornaments,   subclasses 143+ for vases.
D99, Miscellaneous,   subclasses 28+ for safes.

SUBCLASSES

[List of Patents for class 220 subclass 1.5]    1.5FREIGHT CONTAINERS:
 This subclass is indented under the class definition.  Containers constructed for individual handling to be placed on and removed from cars, trucks, etc., generally to constitute part of the body thereof. They are usually of the type known as less than Car-Load Lot containers and are of such size and form that one or more constitute a car body or load.

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410, Freight Accommodation on Freight Carrier,   subclasses 2+ for a freight container disclosed as being part of the vehicle and constructed to accommodate for haulage a particular particle (as opposed to a load bearer or indiscriminate freight. See this class (410) subclasses 2+ for the particular article accommodation concept); and subclasses 52+ for a freight container for intermodel accommodation on a freight carrier, for which technique of freight shipment the container is provided with means interengageably associable with a freight carrier body for on-and-off accommodation.
454, Ventilation,   subclasses 77 , 79, 88, and 118 for the ventilation of cargo areas on freight-carrying vehicles.
  
[List of Patents for class 220 subclass 1.6]    1.6Including inner bag liner:
 This subclass is indented under subclass 1.5.  Subject matter including a sack or pouch of flexible material which is located interiorly of the freight container and serves as a substitute inner surface for it.

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495.01+,for other receptacles having inner bag liners.

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229, Envelopes, Wrappers, and Paperboard Boxes,   subclass 117.27 for paperboard boxes having bag liners.
  
[List of Patents for class 220 subclass 2]    2COAL RECEPTACLES:
 This subclass is indented under the class definition.  Devices comprising coal-buckets, including guards, feeding devices, etc.
(1) Note. Search appropriate subclass for closures, handles, compartments, end structures, or other special features of coal buckets, etc.

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20,for sifting-partitions and hopper constructions.

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209, Classifying, Separating, and Assorting Solids,   subclasses 233+ especially subclass 376, for sifting features alone.
  
[List of Patents for class 220 subclass 2.1]    2.1ENVELOPE FOR ELECTRIC LAMP OR SIMILAR DEVICE:
 This subclass is indented under the class definition.  Envelopes, casings and housings, designed for use with electric lamps, electric space discharge devices and similar devices.
(1) Note. This subclass includes envelopes made of vitreous, ceramic or nonmetallic plastic material for electric lamps, electric space discharge devices, electric switches and similar devices where the claimed structure is of general application and not limited to use with any specific electric device or is not limited by claimed structure to electrical use.
(2) Note. This subclass provides only for the structure of the envelope and associated accessories such as an attached base but does not provide for any structure which is limited to electrical use such as lead-in wires for conducting electricity through the wall of the envelope, casing or housing.
(3) Note. An envelope is defined for the purpose of classification in this and the indented subclasses as being a gas tight enclosure designed to be evacuated or filled with a gas or vapor. In general the distinction between an envelope and a jacket or casing is that the envelope is to be sealed so as to be gas tight.
(4) Note. Many of the receptacles in this and the indented subclasses are made in whole or part of glass or other ceramic material but this and the indented subclass are not limited to receptacles made of such material.
(5) Note. As this and the indented subclass are based on the function of the casing or housing, the art in these subclasses is cross-referenced into the succeeding subclasses of this class for structural features which are of general utility.

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3.2,for outlet or junction box type receptacles and housings which are designed for use with electrical apparatus.
581+,for a high-pressure-gas tank.

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65, Glass Manufacturing,   subclasses 138+ for glassworking apparatus for making electronic envelope headers, terminals or stems.
165, Heat Exchange,   subclass 74 for an envelope, casing, housing or coil device projecting into and covering an opening in an enclosure containing a fluid for modifying the temperature of the device; subclasses 80.1+ for a means retaining a removable device in a heat exchanger; subclasses 177+ for a tubular structure with heat exchanging features; and subclass 185 for a heat transmitter, per se.
174, Electricity: Conductors and Insulators,   appropriate subclasses, provides for envelopes, casings and housings for use with electrical devices, such as discharge devices and lamps, which include electrical features (such as the lead-in conductors for a lamp) but which do not include any significant characteristics of the electrical device. See the class definition of Class 174 for the subclasses in Class 174 which provide for this subject matter.
200, Electricity: Circuit Makers and Breakers,   subclass 152 and the subclasses specified in the Notes thereto for liquid contact circuit makers and breakers (e.g., mercury switches) which are provided with an envelope.
313, Electric Lamp and Discharge Devices,   subclasses 317+ and the subclasses specified in the Notes thereto for electric lamps and electric space discharge devices which are provided with an envelope which is sealed so as to maintain an atmosphere of gas or vapor within the envelope or to maintain a vacuum within the envelope, and subclass 324 and the subclasses specified in the Notes thereto for other lamps and discharge devices which are provided with a jacket or a casing. Class 313 is the generic class for discharge devices and lamps which have an envelope formed as an integral part thereof. Class 313 is also the generic class for discharge devices which have combined therewith a separable casing for the discharge device. See References With Other Classes and Within This Class, in Class 313 for the other classes which provide for significant lamp structure or discharge device structure in combination with either an integral envelope or a separable casing or jacket.
428, Stock Material or Miscellaneous Articles,   subclass 34 for a plurality of light transmissive or translucent glass sheet, sealed at their edges and spaced so as to enclose a gas space therebetween, and subclasses 426+ and 630 for composites having a glass component.
431, Combustion,   subclasses 358+ for an illuminating flash device comprising a fuel charge within a sealed transparent container.
501, Compositions: Ceramic,   subclasses 11+ for lamp and discharge device envelopes defined only as being made of a glass composition and glass compositions, per se.
  
[List of Patents for class 220 subclass 2.2]    2.2With evacuating stem or valve:
 This subclass is indented under subclass 2.1.  Subject matter which are provided with an evacuating stem or opening for evacuating the envelope.

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24+,for receptacle structure of general application provided with ordinary removable closures.
44,for closures which provide venting means for receptacles including connectors for evacuating purposes.

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65, Glass Manufacturing,   subclass 34 for a process of sealing off an exhaust opening in a glass envelope by a glassworking operation, subclass 153 for apparatus to fusion bond an exhaust tube to an envelope by glassworking, subclass 155 for electronic device making apparatus including fusion bonding means, and subclass 270 for apparatus for "tipping-off" a glass envelope.
174, Electrically: Conductors and Insulators,   subclasses 8+ for envelopes, casings, and housings which are restricted by claimed subject matter to electrical use and in which a vacuum or fluid (gas) is employed or which have means peculiarly adapted for use in connection with a vacuum or with a material in a fluid condition. See subclasses 17.05+ and the subclasses specified in the Notes thereto for hermetically sealed envelopes which include electrical features (e.g., lead-in wires, electrical connectors, etc.) and which are provided with an evacuating stem or opening.
  
[List of Patents for class 220 subclass 2.3]    2.3Partly of conducting material:
 This subclass is indented under subclass 2.1.  Subject matter in which the envelope is made in whole or in part of conductive material (e.g., metal).

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29, Metal Working,   subclasses 400.1+ for miscellaneous processes of making hollow articles composed in whole or part of metal, subclass.
174, Electricity: Conductors and Insulators,   subclasses 50.5+ provides for envelopes formed of conductive material which have a lead wire for conducting electricity passing through the wall of the envelope, casing or housing. See especially subclass 50.53 where the metal wall portion is formed as an electrical connector and subclass 50.56 and the subclasses specified in the Notes thereto where the lead wire passes through and is insulated from the metal wall. See section 7 of the class definition for the other subclasses in Class 174 which provide for envelopes, casings, and housings limited by claimed structure to electrical use.
228, Metal Fusion Bonding,   appropriate subclasses for making containers by uniting metal to metal, metal to nonmetal, or nonmetal to nonmetal utilizing a metallurgical bond, i.e., a bond in which bond is effected by a metallic cement or by fusion of a metallic part.
403, Joints and Connections,   subclasses 28+ for a joint between two members which is specially constructed to utilize the thermal characteristics of the members.
  
[List of Patents for class 220 subclass 3.2]    3.2OUTLET OR JUNCTION BOX TYPE:
 This subclass is indented under the class definition.  Receptacles having provision for extending devices, such as strands, rods, pipes, etc., through the receptacle wall or for coupling them to the receptacle wall.
(1) Note. Such receptacles combined with apparatus contained therein are in the appropriate class.

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174, Electricity: Conductors and Insulators,   subclasses 17 , 18 and 50+ for receptacles in combination with electrical structure, such as insulators, conductors or contained electrical equipment, in addition to the structure of the receptacle or coupling means.
285, Pipe Joints or Couplings,   subclasses 18+ for a coupling combined with assembly means, subclasses 149.1+ for a joint between a pipe or cable and box, subclasses 136.1+ for a cable to tubular member-to-plate joint, and subclasses 189+ for an end to plate, especially subclasses 194+ for secant joints having hole edge clamps.
  
[List of Patents for class 220 subclass 3.3]    3.3Wall, floor, or panel mounted:
 This subclass is indented under subclass 3.2.  Receptacles having means specialized for mounting the same on or in a panel, such as a wall, ceiling, floor, door frame, etc.

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3.9,and 3.92, for such receptacles having supporting means which are equally useful for mounting the receptacle on or between poles, joists, beams, or on structures other than panels and walls.
476+,for a wall supported container which is not of the outlet or junction box type.
628+,and the notes thereunder, for supporting end structure of the receptacle.

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52, Static Structures (e.g., Buildings),   subclass 36 for a specific building structure with a built-in horizontal surface type article of furniture, and subclasses 220.1+ for a specific building structure with a surface duct within a barrier.
73, Measuring and Testing,   subclass 201 , for volume or rate of flow meter boxes, and subclasses 273 and 274, for volume or rate of flow meter casings and their mountings.
137, Fluid Handling,   subclasses 357+ for fluid handling devices provided with means to support or mount them on buildings or building parts.
174, Electricity: Conductors and Insulators,   subclasses 480 through 507for wall-mounted conduits and housings.
211, Supports: Racks,   particularly subclasses 87.01+ for wall mounted racks.
248, Supports,   subclasses 27.1+ for instrument in panel supports.
312, Supports: Cabinet Structure,   subclasses 242 and 245+ for cabinets mounted on or in a wall, ceiling or panel.
  
[List of Patents for class 220 subclass 3.4]    3.4Concrete, lath or plaster engaging means:
 This subclass is indented under subclass 3.3.  Receptacles having means specialized for mounting in or for engaging concrete, laths or plaster.
(1) Note. This subclass includes devices for keeping plaster, concrete, paint, etc., out of the box during the plastering, painting or other operations.
  
[List of Patents for class 220 subclass 3.5]    3.5In opening:
 This subclass is indented under subclass 3.3.  Receptacles mounted in an opening in the wall or panel.
  
[List of Patents for class 220 subclass 3.6]    3.6Opposed engaging means:
 This subclass is indented under subclass 3.5.  Receptacles having at least two means for engaging the wall or panel on opposite sides thereof and in opposed relation.
  
[List of Patents for class 220 subclass 3.7]    3.7With adjustable parts:
 This subclass is indented under subclass 3.2.  Receptacles having at least two parts whose relative position may be adjusted.

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8,for receptacles having telescoping sections.

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174, Electricity: Conductors and Insulators,   subclass 57 for combinations of a plug receptacle or wall switch with a box or housing therefor in which two or more of the parts of the box or mounting means are relatively adjustable.
  
[List of Patents for class 220 subclass 3.8]    3.8With closure:
 This subclass is indented under subclass 3.2.  Receptacles in combination with a closure. Such closure may be of the face plate type.

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24+,for closures.
24.2,for closures of the face plate type.
27,for frangible and knock-out type of closures.
  
[List of Patents for class 220 subclass 3.9]    3.9With support:
 This subclass is indented under subclass 3.2.  Receptacles in combination with supporting means therefor.

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3.3+,and the notes thereunder, for other receptacle supporting means.

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174, Electricity: Conductors and Insulators,   subclasses 58 and 63 for similar structures combined with an electrical device or mounting means therefor.
248, Supports,   for supports of general application.
  
[List of Patents for class 220 subclass 3.92]    3.92Sectional receptacle:
 This subclass is indented under subclass 3.9.  Receptacles in which the receptacles are made in sections.

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4.01+,for such devices in which the characteristics that make the receptacle an outlet or junction box are not claimed.
  
[List of Patents for class 220 subclass 3.94]    3.94Sectional receptacle:
 This subclass is indented under subclass 3.2.  Receptacles in which the receptacles are made in sections.

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3.92,and the notes thereunder for this type receptacle provided with supporting means therefor.
  
[List of Patents for class 220 subclass 4.01]    4.01SECTIONAL:
 This subclass is indented under the class definition.  Receptacle constructed of separate and distinct sections which are assembled together to form a complete container.

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3.92,and 3.94, for a sectional outlet box.
600+,for specific end wall structure or a specific joint connecting the end wall to the sidewall.
660+,for specific wall structure or a specific joint connecting wall sections.

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217, Wooden Receptacles,   subclasses 12+ for a sectional wooden box, and subclasses 43+ for a sectional wooden crate.
  
[List of Patents for class 220 subclass 4.02]    4.02Electrical housing:
 This subclass is indented under subclass 4.01.  Receptacle wherein the container is designed to contain an electrical component (e.g., washing, machine, razor, toaster, or other appliance).
(1) Note. Only the housing, per se, is found in this subclass. Search the appropriate class for a specific electrical device.
  
[List of Patents for class 220 subclass 4.03]    4.03Extension:
 This subclass is indented under subclass 4.01.  Receptacle wherein the container is provided with an additional section to form an extension of the sidewall.
(1) Note. The additional section is usually located around an open end, and normally functions to provide additional capacity or to prevent overflow.

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126, Stoves and Furnaces,   subclasses 383.1 through 386.1for an open-top liquid heating vessel that may include a lid having a collecting, directing, or shielding feature for overflow or spatter of the liquid.
  
[List of Patents for class 220 subclass 4.04]    4.04Barrel-shaped container:
 This subclass is indented under subclass 4.01.  Receptacle wherein the sectional container has a generally cylindrical shape with a slightly bulging sidewall and with generally parallel end walls.
(1) Note. A drum-shaped sectional container similar in construction and size to a barrel-shaped container is classified with the barrel-shaped containers.
(2) Note. The capacity of a barrel is normally 31 1/2 gallons or less, and it is generally portable or movable by hand.
  
[List of Patents for class 220 subclass 4.05]    4.05Formed of thermoplastic material:
 This subclass is indented under subclass 4.04.  Barrel wherein the sections are made (usually molded) of a resinous material.
  
[List of Patents for class 220 subclass 4.06]    4.06Comprising only two similar cup-shaped sections:
 This subclass is indented under subclass 4.04.  Barrel having two basically like parts each of which has a cup-like shape.
  
[List of Patents for class 220 subclass 4.07]    4.07Separable sections:
 This subclass is indented under subclass 4.06.  Barrel wherein the two parts include means which permit them to be readily disassociated.
  
[List of Patents for class 220 subclass 4.08]    4.08Knockdown:
 This subclass is indented under subclass 4.04.  Barrel wherein the sections are separate parts, and including means which permit the parts to be readily assembled or disassembled (e.g., for shipment, storage, etc.).
  
[List of Patents for class 220 subclass 4.09]    4.09Separable sidewall and end walls:
 This subclass is indented under subclass 4.08.  Barrel wherein the end walls are detachable from the sidewall, which itself may include one or more separable parts.
  
[List of Patents for class 220 subclass 4.11]    4.11Sidewall formed of separable stave-like parts:
 This subclass is indented under subclass 4.09.  Barrel wherein the sidewall comprises a plurality of thin, narrow, similar elements which are detachably secured together.
  
[List of Patents for class 220 subclass 4.12]    4.12Tank for fluids:
 This subclass is indented under subclass 4.01.  Receptacle wherein the sectional container is constructed to hold a liquid or gas and constructed and dimensioned so as to be movable.
(1) Note. A tank in this subclass is distinguished by its size and construction from those which obviously cannot be moved in one piece (i.e., "stationary tanks"), and those which are intended to be carried by hand when full (e.g., "cans"), such as milk cans, gas cans, garbage cans, etc.

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85+,for an attachment for a tank.
562+,for a large container intended to be mounted on a vehicle and used for transporting fluent material.
565+,for a stationary tank.
610+,for a joint between a sidewall and end wall.
677+,for a joint between sidewalls.

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137, Fluid Handling,   subclasses 561+ for a fluid handling system which includes a tank.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means,   various subclasses for a tank combined with a filling attachment.
222, Dispensing,   various subclasses for a tank combined with dispensing means.
  
[List of Patents for class 220 subclass 4.13]    4.13Formed of thermoplastic material:
 This subclass is indented under subclass 4.12.  Tank wherein the sections are made (usually molded) of a resinous material.
  
[List of Patents for class 220 subclass 4.14]    4.14Vehicular fuel tank:
 This subclass is indented under subclass 4.12.  Tank wherein the container is an automotive, aircraft or the like tank for supplying fuel to the vehicle.

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562+,for a large container intended to be mounted on a vehicle and used for transporting fluent material.

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280, Land Vehicles,   subclasses 830+ for a tank combined with vehicle structure.
  
[List of Patents for class 220 subclass 4.15]    4.15Removable aircraft fuel tank:
 This subclass is indented under subclass 4.14.  Tank wherein the tank is the type normally fitted to an aircraft wing and quite frequently jettisoned in flight.
  
[List of Patents for class 220 subclass 4.16]    4.16Knockdown:
 This subclass is indented under subclass 4.12.  Tank wherein the sections are separate parts, and including means which permit the parts to be readily assembled or disassembled (e.g., for shipment, storage, etc.).
  
[List of Patents for class 220 subclass 4.17]    4.17Bolted construction:
 This subclass is indented under subclass 4.16.  Tank wherein the sections are secured to each other by one or more bolts.
  
[List of Patents for class 220 subclass 4.21]    4.21Container formed of only two similar sections:
 This subclass is indented under subclass 4.01.  Receptacle wherein the container is formed of two basically like segments.
  
[List of Patents for class 220 subclass 4.22]    4.22Sections hinged together:
 This subclass is indented under subclass 4.21.  Receptacle wherein the two similar sections are secured to one another by a hinge.

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810+,for a closure hinged to a body structure.
  
[List of Patents for class 220 subclass 4.23]    4.23Hinge integral with sections:
 This subclass is indented under subclass 4.22.  Receptacle wherein the two similar sections and the hinge are formed as one-piece.

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837+,for a similar hinge connecting a closure and body.
  
[List of Patents for class 220 subclass 4.24]    4.24Identical halves:
 This subclass is indented under subclass 4.21.  Receptacle wherein each section is essentially a duplicate of the other.
  
[List of Patents for class 220 subclass 4.25]    4.25Hemispherical sections:
 This subclass is indented under subclass 4.24.  Receptacle wherein the similar sections are each formed as a half sphere.
  
[List of Patents for class 220 subclass 4.26]    4.26Stacked or aligned similar sections:
 This subclass is indented under subclass 4.01.  Receptacle wherein the container is formed of a plurality of sections, generally having the same configuration, which are positioned on one another to form the container.

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206, Special Receptacle or Package,   subclasses 503+ for a stack of containers of that class type.
  
[List of Patents for class 220 subclass 4.27]    4.27Sections are container units:
 This subclass is indented under subclass 4.26.  Receptacle wherein each of the sections is in the form of an independent container, and capable of functioning as an independent container.
  
[List of Patents for class 220 subclass 4.28]    4.28Knockdown:
 This subclass is indented under subclass 4.01.  Receptacle wherein the sections are separate parts or have separate parts, such as a bottom wall and sidewalls, which can be readily assembled or disassembled (e.g., for shipping, storage, etc.).

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217, Wooden Receptacles,   subclasses 12+ for a knockdown wooden box, and subclasses 43+ for a knockdown wooden crate.
  
[List of Patents for class 220 subclass 4.29]    4.29Sidewalls vertically hinged to each other:
 This subclass is indented under subclass 4.28.  Receptacle wherein some or all of the sidewalls are flexibly connected together along a vertical joint to permit folding into collapsed condition.

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6,and 7, for sidewalls hinged to the base or bottom wall of the container in addition to being hinged to each other.

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217, Wooden Receptacles,   subclass 16 for a knockdown wooden box having vertically hinged sides, and subclass 48 for a knockdown wooden crate having vertically hinged sides.
  
[List of Patents for class 220 subclass 4.31]    4.31Sidewalls slide vertically to engage each other:
 This subclass is indented under subclass 4.28.  Receptacle wherein some or all of the sidewalls are assembled or disassembled to one another by a vertical motion.
  
[List of Patents for class 220 subclass 4.32]    4.32Sidewall slides horizontally to engage the base:
 This subclass is indented under subclass 4.28.  Receptacle wherein a sidewall is assembled to the container bottom wall by a horizontal motion.
  
[List of Patents for class 220 subclass 4.33]    4.33Removable fastening element:
 This subclass is indented under subclass 4.28.  Receptacle including a separate securing device for releasably holding the container in an erected or assembled condition.
  
[List of Patents for class 220 subclass 4.34]    4.34Retaining pin extends through aligned openings in knuckle-like elements:
 This subclass is indented under subclass 4.33.  Receptacle wherein the removable fastening element is a pin, pintle, or rod-like member which passes through interengaging knuckle-like or socket-like projections extending from two adjacent container walls (e.g., two sidewalls or a sidewall and the bottom wall).
  
[List of Patents for class 220 subclass 6]    6Folding:
 This subclass is indented under subclass 4.01.  Structures where the several parts fold into compact form for shipping or similar purposes.

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666,for a sidewall structure that includes means (e.g., fold lines, corrugations, etc.) which permits the receptacle to be compressed.
  
[List of Patents for class 220 subclass 7]    7Fastening members:
 This subclass is indented under subclass 6.  Devices comprising fastening means for folding structures which hold the structure in its set-up position.

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4.01+,for those structures where the fastening device is an integral part thereof.

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217, Wooden Receptacles,   the subclasses indented under "Boxes, Crates, Knockdown, Folding" and those indented under "Boxes, Knockdown, Folding", for knockdown and folding wooden receptacles.
  
[List of Patents for class 220 subclass 8]    8Telescoping:
 This subclass is indented under subclass 4.01.  Devices in which the parts of the sectional structure nest within each other. Includes also nesting receptacles which form a compartmented whole.
(1) Note. Receptacles formed of sections joined by a lap-joint are not considered "telescoping".
(2) Note. This subclass includes receptacles having telescoped sections whose relative positions may be adjusted.

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489,for a wire receptacle having an adjustable or contortable sidewall structure.

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73, Measuring and Testing,   subclass 429 for measuring vessels with movable means to alter the size of the vessel.
285, Pipe Joints or Couplings,   subclass 182 for knockdown elbow fittings comprising nesting parts, and subclasses 298+ for joints between tubular bodies providing variable length (e.g., telescoping).
  
[List of Patents for class 220 subclass 9.1]    9.1FLACCID WALL MATERIAL PERMANENTLY UNITED WITH A SKELETAL FRAMEWORK:
 This subclass is indented under the class definition.  Subject matter comprising wall material which is supple and is permanently attached to and sustained on a rigid, open three dimensional frame.
(1) Note. Not all of the wall material must be supple.
(2) Note. A three dimensional frame is capable of standing alone.

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4.01+,for sectional receptacles.
9.4,for a receptacle having a flaccid wall removably attached to a skeletal framework.
62.11+,for a receptacle having a wall formed of plural permanently attached layers.
485+,for a wire frame receptacle, per se.
495.01+,for a receptacle having a removable line.
647,for a receptacle body reinforcement comprising an open framework.
668,for skeleton framework wall structure.

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43, Fishing, Trapping, and Vermin Destroying,   subclasses 54.1+ for a receptacle having means specialized to holding bait or catch.
206, Special Receptacle or Package,   subclasses 386+ for a receptacle having a pallet feature.
224, Package and Article Carriers,   appropriate subclasses for a fruit picker"s bag having shoulder straps or means for attaching it to a person.
232, Deposit and Collection Receptacles,   appropriate subclasses for a harvesting bag having separate inlet and outlet openings.
248, Supports,   subclasses 95+ for a bag holder which may be a skeletal framework, but which is not permanently united with the bag. A bag may be claimed in combination with the holder so long as the claimed bag features are restricted to those which cooperate with the support. If the skeletal framework is capable of functioning as a receptacle by itself, it is provided for in Class 220, Receptacles, subclasses 400+.
280, Land Vehicles,   for similar devices having wheels which are claimed, particularly subclasses 79.1+ for caster type wheels.
294, Handling: Hand and Hoist-Line Implements,   subclasses 137+ for an article carrier combined with a handle and having means peculiarly adapted to engage and support an article being carried.
312, Supports: Cabinet Structure,   subclasses 35+ for a receptacle having a spring loaded bottom portion which moves in response to the weight of contents.
383, Flexible Bags,   for a bag having reinforcing frame-like elements, which elements do not provide a three dimensional self-sustaining framework. For example, a bag having a two dimensional frame, a mouth frame, or spaced apart rigid elements (i.e., reinforcements) is provided for in Class 383 particularly subclasses 33+ , 119 and 121.1.
  
[List of Patents for class 220 subclass 9.2]    9.2Collapsible or foldable framework:
 This subclass is indented under subclass 9.1.  Subject matter wherein the skeletal framework includes means which permit it to be folded into a compact configuration.

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4.28+,for a knockdown type sectional receptacle.

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5, Beds,   subclasses 98 and 625+ for a stretcher or crib made of flaccid or flexible material sustained on a frame which may be a folding type.
190, Trunks and Hand-Carried Luggage,   subclass 107 , for hand luggage which is collapsible.
206, Special Receptacle or Package,   subclass 600 for a collapsible receptacle having a pallet feature.
217, Wooden Receptacles,   subclasses 12+ and 43+ for a foldable or collapsible of that class type.
248, Supports,   subclasses 95+ for a bag holder which may be foldable or collapsible. This Class 220, Receptacles, provides for a bag holding framework which is permanently united with the bag. Class 248, Supports, subclasses 165 and 166+ provide for a knockdown or folding stand, respectively.
  
[List of Patents for class 220 subclass 9.3]    9.3Laterally collapsible or foldable:
 This subclass is indented under subclass 9.2.  Subject matter wherein the framework can be collapsed or folded into a compact configuration having a reduced horizontal dimension.

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297, Chairs and Seats,   subclass 45 for a laterally collapsible chair having a fabric bottom and back.
312, Supports: Cabinet Structure,   subclasses 35+ for a receptacle having a spring loaded bottom portion which moves in response to the weight of contents.
  
[List of Patents for class 220 subclass 9.4]    9.4FLACCID WALL MATERIAL REMOVABLY ATTACHED TO SKELETAL FRAMEWORK:
 This subclass is indented under the class definition.  Subject matter comprising wall material which is supple and is separably attached to, and sustained on, a rigid, open three dimensional frame.

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9.1+,for a container which includes flaccid wall material permanently united with a skeletal framework.
  
[List of Patents for class 220 subclass 17.1]    17.1LEG OR LAP SUPPORTED:
 This subclass is indented under the class definition.  Devices including means integrally formed with or to be attached to pails for supporting the pail from the leg or by the lap of a person.

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224, Package and Article Carriers,   appropriate subclasses, for body and belt attached carriers wherein the carrying feature predominates.
297, Chairs and Seats,   subclasses 175+ for a milker stool combined with mere pail support.
  
[List of Patents for class 220 subclass 17.2]    17.2Bail ear engaging or integral therewith:
 This subclass is indented under subclass 17.1.  Devices wherein the means or attachment is a constituent part of, is in abutting engagement with, or is separable from a bail ear.
  
[List of Patents for class 220 subclass 17.3]    17.3With pail encircling band or ring:
 This subclass is indented under subclass 17.1.  Devices including a band or ring which encircles the pail.
  
[List of Patents for class 220 subclass 23.2]    23.2HORIZONTALLY ATTACHED RECEPTACLE SETS:
 This subclass is indented under the class definition.  Receptacles comprising a group of two or more distinct receptacles joined together in a side-by-side relationship.
(1) Note. Each receptacle of the set must be sufficiently distinct so that it could be removed from the set without destroying the identity of another receptacle of the set.

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507+,and 529+, for receptacles having partitions, defining a plurality of compartments therein.

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249, Static Molds,   subclasses 119+ for molds for forming plural articles.
312, Supports: Cabinet Structure,   subclasses 107+ for sectional unit cabinet structures.
  
[List of Patents for class 220 subclass 23.4]    23.4Detachable:
 This subclass is indented under subclass 23.2.  Devices in which at least one of the individual receptacles is so joined to the set of receptacles as to facilitate its separation from the set.
  
[List of Patents for class 220 subclass 23.6]    23.6With stacking feature:
 This subclass is indented under subclass 23.2.  Devices including means to facilitate the placing of one set of receptacles upon another to form a pile or stack.

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97,for means for stacking individual receptacles.

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249, Static Molds,   subclass 126 for stacked molds.
  
[List of Patents for class 220 subclass 23.8]    23.8Integral:
 This subclass is indented under subclass 23.2.  Devices in which the attachment of at least one receptacle to another receptacle of the set is by the fabrication of a part or all of the wall or bottom portions of two or more of the respective receptacles from a common sheet member or mass.

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23.2,for two or more receptacles joined by "integral" bonds, such as by welding, brazing or soldering.
  
[List of Patents for class 220 subclass 23.83]    23.83ARRANGEMENTS OF PLURAL RECEPTACLES:
 This subclass is indented under the class definition.  Devices comprising a plurality of specially related, distinct receptacles.

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23.2+,for horizontally attached receptacle sets.
63+,for lined receptacles 97 for plural receptacles disposed in a stacked or nested relation, and see the Notes thereunder.
  
[List of Patents for class 220 subclass 23.86]    23.86At least one combined or convertible:
 This subclass is indented under subclass 23.83.  Devices wherein at least one of the receptacles (1) is combined with a nonreceptacle feature not provided for elsewhere in this class or (2) has means or parts permitting structural rearrangement to provide either a receptacle of some other kind or a device of some other description.

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23.2+,for horizontally attached receptacle sets.

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312, Supports: Cabinet Structure,   subclass 198 for arrangements of plural cabinets.
  
[List of Patents for class 220 subclass 23.87]    23.87Receptacle having rigid, removable inner container:
 This subclass is indented under subclass 23.83.  Subject matter wherein a container made of relatively inflexible material is located inside of the receptacle but can be taken out.

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573.4+,for cookware having an inner, removable container.

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15, Brushing, Scrubbing, and General Cleaning,   subclasses 257.07+ for an inkwell having structure which facilitates loading a pen with ink.
108, Horizontally Supported Planar Surfaces,   subclass 26.2 , for an inkwell combined with a horizontally supported planar surface such as desk top.
312, Supports: Cabinet Structure,   subclass 232 , for a cabinet structure combined with an inkwell.
  
[List of Patents for class 220 subclass 23.88]    23.88Plural inner containers:
 This subclass is indented under subclass 23.87.  Subject matter wherein the receptacle includes two or more rigid, removable inner containers.

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573.5,for cookware having two or more removable inner containers.
  
[List of Patents for class 220 subclass 23.89]    23.89Releasable securing or stabilizing means for inner container:
 This subclass is indented under subclass 23.87.  Subject matter including structure which engages the inner container and prevents it from moving with respect to the outer container and from which the inner container can be freed or detached so that it can be removed.

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24, Buckles, Buttons, Clasps, etc.,   , subclass 288 , for a fastener, per se, specifically adapted for securing containers, drums, or cans in a spaced relationship.
  
[List of Patents for class 220 subclass 23.9]    23.9RECEPTACLE HAVING RIGID, REMOVABLE, NONRECEPTACLE INNER LINER:
 This subclass is indented under the class definition.  Subject matter wherein a layer of relatively inflexible material, which layer in its entirety does not form a container, is located inside of the receptacle but can be taken out.
  
[List of Patents for class 220 subclass 23.91]    23.91RECEPTACLE HAVING RIGID, REMOVABLE EXTERNAL JACKET OR CASING:
 This subclass is indented under the class definition.  Subject matter wherein the receptacle includes a separably attached outer layer of relatively inflexible material.
  
[List of Patents for class 220 subclass 62]    62Blank:
 A two dimensional sheet of material which has been cut, scored or otherwise modified so as to be ready to be folded into a container of this class type.

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229, Envelopes, Wrappers, and Paperboard Boxes,   subclasses 100+ for blank for a box.
  
[List of Patents for class 220 subclass 62.1]    62.1Corner fold:
 This subclass is indented under subclass 62.  Blank wherein the blank is formed with structure that constitutes a unitary corner when the blank is folded to form a container.
  
[List of Patents for class 220 subclass 62.11]    62.11RECEPTACLE SIDE WALL MADE OF TWO OR MORE LAYERS OF MATERIAL PERMANENTLY ATTACHED TOGETHER:
 This subclass is indented under the class definition.  Subject matter wherein an upwardly extending wall of a receptacle includes two or more distinct thicknesses of material which are inseparably secured together.

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586+,for a high pressure gas tank having a multi-layer wall.
592.2+,for thermally insulated receptacle having a multi-layer wall.
592.02+,for a refrigerator cabinet having a multi-layer wall.

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428, Stock Material or Miscellaneous Articles,   subclasses 34.1+ for a nominally recited container having two or more permanently attached layers of material. A recitation of specific seam structure (other than mere layers) or of the internal or external surface of the container is not a nominal recitation and is proper for this class.
  
[List of Patents for class 220 subclass 62.12]    62.12Beverage receptacle:
 This subclass is indented under subclass 62.11.  Subject matter wherein the receptacle is used for containing a liquid for drinking.

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592.16+,for a beverage container having means to facilitate maintaining the beverage above or below ambient temperature.

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426, Food or Edible Material: Processes, Compositions, and Products,   subclasses 106+ for a container in combination with a food product.
  
[List of Patents for class 220 subclass 62.13]    62.13Solid food receptacle:
 This subclass is indented under subclass 62.11.  Subject matter wherein the receptacle is used to contain food other than beverages.

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495.03,for a receptacle for a food or beverage wherein the receptacle includes a flexible, removable inner liner.

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426, Food or Edible Material: Processes, Compositions, and Products,   subclasses 106+ for a container in combination with a food product.
  
[List of Patents for class 220 subclass 62.14]    62.14Decorative layer:
 This subclass is indented under subclass 62.11.  Subject matter wherein the receptacle includes a layer that enhances its appearance.
  
[List of Patents for class 220 subclass 62.15]    62.15Including a layer which comprises an inorganic, nonmetallic material (e.g., porcelain, glass, brick, concrete, earthenware):
 This subclass is indented under subclass 62.11.  Subject matter wherein the receptacle has a layer which includes a material other than a carbon compound or a metal.
  
[List of Patents for class 220 subclass 62.16]    62.16Copper layer:
 This subclass is indented under subclass 62.11.  Subject matter wherein one of the layers is copper.
  
[List of Patents for class 220 subclass 62.17]    62.17Two different metallic layers:
 This subclass is indented under subclass 62.11.  Subject matter wherein the receptacle side wall includes two dissimilar layers of metal.
  
[List of Patents for class 220 subclass 62.18]    62.18Hollow side wall:
 This subclass is indented under subclass 62.11.  Subject matter wherein two of the layers are separated by an empty space.

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592.05,for a refrigerator cabinet having a hollow wall.
592.27,for a thermally insulated receptacle having vacuum insulation.
  
[List of Patents for class 220 subclass 62.19]    62.19Layer of fibrous or filamentary material:
 This subclass is indented under subclass 62.11.  Subject matter wherein one of the layers is made of a plurality of slender, thread-like elements.
  
[List of Patents for class 220 subclass 62.2]    62.2Wood or wood product layer (e.g., paper, paperboard):
 This subclass is indented under subclass 62.19.  Subject matter wherein the slender, thread-like elements are derived from wood.

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229, Envelopes, Wrappers, and Paperboard Boxes,   subclass 122.22 for a paperboard box having a wall made of wood, subclass 122.25 for a paperboard box having walls framed by lengths of wood, and 199.1 for a paperboard box having a wooden reinforcing element.
  
[List of Patents for class 220 subclass 62.21]    62.21Bag liner:
 This subclass is indented under subclass 62.11.  Subject matter wherein one of the layers is a bag and is attached to the inside of the container.

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495.06+,for a container having a removable bag liner.
  
[List of Patents for class 220 subclass 62.22]    62.22Thermoplastic layer:
 This subclass is indented under subclass 62.11.  Subject matter wherein one of the layers of material is a material which flows when heated and which is stable when cooled.
  
[List of Patents for class 220 subclass 86.1]    86.1Filling member:
 This subclass is indented under subclass 85.  Receptacle wherein the attachment is a means which affects the supply of contents to the interior of a container.
(1) Note. The attachment may take the form of a guard, funnel, fill pipe, etc.

SEE OR SEARCH CLASS:

73, Measuring and Testing,   subclasses 306+ for a float gauge structure combined with a filling device.
141, Fluent Material Handling, With Receiver or Receiver Coacting Means,   subclasses 331+ for a funnel, and subclass 343 for a detachable filling accessory.
210, Liquid Purification or Separation,   subclasses 244+ for a portable receptacle type filter provided with a hood or closure, subclasses 464+ for a portable receptacle draining-type filter, and subclasses 473+ for a filter resting upon a supporting receiver (e.g., receptacle).
222, Dispensing,   subclasses 478+ for a dispenser having, in addition to a dispensing outlet (e.g., nozzle, valved outlet, etc.), an additional opening which may be for filling.
429, Chemistry: Electrical Current Producing Apparatus, Product, and Process,   subclasses 72+ for a battery having fluid feeding and venting means.
  
[List of Patents for class 220 subclass 86.2]    86.2Automotive type:
 This subclass is indented under subclass 86.1.  Receptacle wherein the filling member is associated with a supply container (e.g., gas tank, radiator, etc.) for an internal combustion operated vehicle.

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180, Motor Vehicles,   subclass 69.4 for a vehicle tank wherein the motor is positively recited.
280, Land Vehicles,   subclasses 830+ for a vehicle tank wherein vehicle structure is claimed.
  
[List of Patents for class 220 subclass 86.3]    86.3With anti-siphon means:
 This subclass is indented under subclass 86.2.  Receptacle wherein the attachment includes an element which is intended to prevent the theft or removal of fuel from the vehicle container (e.g., gas tank) by blocking the insertion of a siphon tube therein.
  
[List of Patents for class 220 subclass 86.4]    86.4Nonrefillable:
 This subclass is indented under subclass 86.1.  Receptacle wherein the filling attachment include means which prevents the container from being filled again once it has been emptied.
  
[List of Patents for class 220 subclass 87.1]    87.1Disinfectant device:
 This subclass is indented under subclass 85.  Receptacle wherein the attachment includes structure which is intended to receive means for disinfecting the interior of the container or the container contents.

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521+,for a compartment in a closure which may be structurally similar to an attachment of this type.

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424, Drug, Bio-Affecting and Body Treating Compositions,   appropriate subclasses for a disinfecting composition, per se.
  
[List of Patents for class 220 subclass 87.2]    87.2Spray:
 This subclass is indented under subclass 87.1.  Receptacle wherein the disinfecting means is in the form of a vapor dispenser (e.g., pump, aerosol, etc.).
  
[List of Patents for class 220 subclass 88.1]    88.1Fire prevention:
 This subclass is indented under subclass 85.  Receptacle wherein the attachment includes means which prevents fire or flame from passing to the contents of the container, or prevents the contents from sustaining combustion (e.g., by shutting off the air supply) thereby extinguishing a fire already started.

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169, Fire Extinguishers,   subclasses 66+ for a storage tank with a fire prevention system.
222, Dispensing,   subclass 54 for a dispenser with a temperature responsive control.
  
[List of Patents for class 220 subclass 88.2]    88.2Screen (flame arrester):
 This subclass is indented under subclass 88.1.  Receptacle wherein the attachment is a body of foraminous material which prevents a flame from passing through it.

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222, Dispensing,   subclass 189.01 for a dispenser with a flame arrester and subclasses 53 and 152 for a dispenser with means for maintaining an inert atmosphere in or around the dispenser.
  
[List of Patents for class 220 subclass 88.3]    88.3By inert gas:
 This subclass is indented under subclass 88.1.  Receptacle wherein a fire is prevented from being sustained by the presence of a noncombustible atmosphere.
  
[List of Patents for class 220 subclass 89.1]    89.1Pressure relief means:
 This subclass is indented under subclass 85.  Receptacle wherein the attachment includes means to relieve excess pressure (usually gas) within the container.

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203.01+,for a receptacle closure comprising a pressure responsive vent or valve.
  
[List of Patents for class 220 subclass 89.2]    89.2Frangible pressure relief means:
 This subclass is indented under subclass 89.1.  Receptacle wherein the pressure relief means is a diaphragm or diaphragm-like device which bursts to relieve excess pressure within the container.

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122, Liquid Heaters and Vaporizers,   subclass 506 for a liquid heater or vaporizer with a pressure controlled fire extinguisher.
137, Fluid Handling,   subclasses 68.11+ for a frangible fluid-control element.
169, Fire Extinguishers,   subclasses 19+ and 56+ for a fire extinguishing mechanism with a frangible control element.
  
[List of Patents for class 220 subclass 89.3]    89.3With cutting means:
 This subclass is indented under subclass 89.2.  Receptacle including an additional member having a knife edge or point intended to facilitate the bursting of the diaphragm.
  
[List of Patents for class 220 subclass 89.4]    89.4Fusible pressure relief means:
 This subclass is indented under subclass 89.1.  Receptacle wherein the pressure relief means is a diaphragm or diaphragm-like device which melts to relieve excess pressure within the container.

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122, Liquid Heaters and Vaporizers,   subclasses 504.1 and 504.3 for a liquid heater or vaporizer with a fusible control for a safety device.
137, Fluid Handling,   subclasses 72+ for a fusible fluid-control element.
169, Fire Extinguishers,   subclasses 19+ , 37+, 42, and 56+ for a fire extinguishing mechanism with a fusible control element.
431, Combustion,   subclass 21 for a fusible control element for a combustion device (e.g., a burner).
  
[List of Patents for class 220 subclass 200]    200CLOSURES:
 This subclass is indented under the class definition.  Devices comprising removable closures and also those closures where solder is applied to hold them in place temporarily. Includes closures and plugs for pipes, boilers, etc. when not limited by structure to that use but which could be used just as well with a metallic receptacle.

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521+,for a container having a compartment within a closure for the container.
523+,for a closure for a compartment of a container.
558,for a file drawer having a hinged front panel.
582,for a high-pressure gas tank having a removable closure.
600+,for end wall structure (e.g., a permanent closure).
610,for a seam or joint between a container body and an end member.

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49, Movable or Removable Closures,   appropriate subclasses, for a movable or removable closure not associated with a receptacle, and see the notes in section IV of Class 49 for the loci of closures in other subclasses.
150, Purses, Wallets, and Protective Covers,   subclasses 118+ for a closure for a purse or a handbag.
160, Flexible or Portable Closure, Partition, or Panel,   and see the notes to the definition of such class for a closure of the flexible or portable panel type; i.e., for a closure in the form of (1) a panel unit in which a flexible fabric or other flexible sheet material forms the panel portion, (2) a panel unit formed of plural strips, slats or panels interconnected for relative motion (excluding those connected only by a common operator or mounted only in a common frame or on a common support), or (3) parts (1) and (2) combined with each other or with another type (e.g., rigid) of closure.
215, Bottles and Jars,   subclasses 40+ , 43, and 200+ for a closure for a bottle or jar.
217, Wooden Receptacles,   subclasses 56+ for a box closure; 76+ for a barrel closure; 98+ for a barrel bung; 124 for a basket closure.
222, Dispensing,   for a closure constructed for dispensing, specially related to a receptacle or container to assist in dispensing, or combined with other dispensing structure.
229, Envelopes, Wrappers, and Paperboard Boxes,   for a closure associated with an envelope, wrapper, or paperboard box.
232, Deposit and Collection Receptacles,   particularly subclass 14 for a change gate; 22 for a letter box having a door or window; 25+ for a compartmented letter box having a closure for the compartment 42 for a milk receptacle having a protective door or window; 43.1+, for a deposit and collection receptacle having separate inlet and outlet openings; 44+, for a passage, trap, or chute having a closure.
312, Supports: Cabinet Structure,   for a closure on a receptacle or enclosure combined with article supporting means, such as a drawer, rack, shelf, etc.
383, Flexible Bags,   subclasses 33+ for means to hold a bag opening in an open position, and subclasses 42+ for a bag closure in general.
  
[List of Patents for class 220 subclass 201]    201Thermal releaser or actuator:
 This subclass is indented under subclass 200.  Device provided with means for retaining the closure in a desired position, or with means for imparting movement to the closure, said means including a second device which when under the influence of heat will release the retaining means or set in motion actuating means to permit or cause the closure to move to a different position.

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16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclass 48.5 for a thermally released door check or closure.
109, Safes, Bank Protection, or a Related Device,   subclass 33 for a bank protection device with thermally controlled fluent material means.
116, Signals and Indicators,   subclasses 101+ for thermal alarms.
126, Stoves and Furnaces,   subclass 287.5 for a fusible released damper.
137, Fluid Handling,   subclasses 72+ for valves controlled by a fusible or heat destructible element, and subclasses 79+, 457 and 468 for other heat responsive valves.
169, Fire Extinguishers,   subclass 19 for automatic valves, subclasses 37+ for sprinkler heads, and subclass 42 for fusible connections.
200, Electricity: Circuit Makers and Breakers,   subclasses 136+ , for electrical thermally controlled switches.
222, Dispensing,   subclass 54 for a thermally controlled dispensing device.
454, Ventilation,   subclass 28 for a thermally released outlet cowl and subclass 369 for thermally actuated fire dampers used in ventilating systems.
  
[List of Patents for class 220 subclass 202]    202With condition responsive vent or valve:
 This subclass is indented under subclass 200.  Device comprising means responsive to a condition or change of condition, to effect the control of a vent or valve on a closure.

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137, Fluid Handling,   subclasses 455+ for valves responsive to a change in line condition.
  
[List of Patents for class 220 subclass 203.01]    203.01Responsive to pressure:
 This subclass is indented under subclass 202.  Device wherein the vent or valve is operable as a result of a variation in pressure occurring within or without the receptacle.

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89.1+,for an attachment to a container including means to relieve excess pressure.
231,for means provided in the closure for breaking a vacuum within a closed receptacle, but where said means are not pressure responsive.
360,for a receptacle provided with a vent or valve through a wall of the receptacle, and a closure is provided with means to regulate said vent or valve.
367.1+,for a receptacle closure comprising a nonpressure responsive vent or valve.

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215, Bottles and Jars,   subclass 260 for a pressure responsive valve in a closure for a receptacle of the bottle, jar, or jug type.
222, Dispensing,   subclasses 491+ for a dispenser having a movable outlet element operated by the pressure of the container contents.
383, Flexible Bags,   subclasses 100+ for a flexible bag comprising pressure relief means.
426, Food or Edible Material: Processes, Compositions, and Products,   subclass 118 for a package containing food, wherein the package comprises means to release gases produced by the food.
  
[List of Patents for class 220 subclass 203.02]    203.02In each of plural, isolated passages:
 This subclass is indented under subclass 203.01.  Device wherein a separate vent or valve is provided in each of two or more flow paths which are not coaxial.

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203.23,for separate spring-biased vents or valves provided in each of two or more coaxial flow paths.
  
[List of Patents for class 220 subclass 203.03]    203.03Liquid trap:
 This subclass is indented under subclass 203.01.  Device wherein the vent or valve includes a liquid barrier through which the contents of the receptacle must pass if such contents are to be passed into the atmosphere.
  
[List of Patents for class 220 subclass 203.04]    203.04Manually adjustable:
 This subclass is indented under subclass 203.01.  Device wherein the vent or valve is provided with manually operable means to (a) adjust the position of the vent or valve to a venting or nonventing position or (b) adjust the vent or valve to respond to varied pressures.
  
[List of Patents for class 220 subclass 203.05]    203.05Having rotatably adjustable closure which places vent or valve in operative position:
 This subclass is indented under subclass 203.04.  Device wherein means are provided to prevent functioning of the vent or valve, said means being adjustable through rotation of the closure about the opening of a receptacle to place the vent or valve in a venting position.
  
[List of Patents for class 220 subclass 203.06]    203.06Rotation of closure causes actuation of vent or valve:
 This subclass is indented under subclass 203.05.  Device wherein said means to prevent functioning of the vent or valve comprise an element of the receptacle, said means physically engaging the vent or valve upon rotation of the closure about the opening of the receptacle, such that the engagement of the receptacle element with the vent or valve causes the venting or valving function to be performed (e.g., spring-biased plate engaged in bayonet-type groove in mouth of receptacle).
  
[List of Patents for class 220 subclass 203.07]    203.07Valve operated by distinct actuator or closure:
 This subclass is indented under subclass 203.04.  Device wherein the manually operable means includes a separate implement, such as a push rod or a pivoted arm on the closure, which is mechanically coupled to the venting or valving mechanism. Operation of said implement causes the venting or valving function to be performed.
(1) Note. When a mechanism is provided on the receptacle closure which serves the sole purpose of adjusting the pressure at which the valve will operate, the invention will be classified in subclass 203.04 above.
  
[List of Patents for class 220 subclass 203.08]    203.08Rupturable:
 This subclass is indented under subclass 203.01.  Device wherein the vent or valve is designed to tear or burst when exposed to excessive pressure.

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89.2,for a rupturable pressure relief means contained in an attachment for a receptacle.

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137, Fluid Handling,   subclasses 68.19+ for a fluid handling system having both a frangible fluid flow control element and a pressure responsive valve.
  
[List of Patents for class 220 subclass 203.09]    203.09Relatively movable closure and receptacle rim parts:
 This subclass is indented under subclass 203.01.  Device wherein the vent or valve comprises a closure part which is moveable with respect to (a) the rim of a receptacle with which it coacts or (b) a rimlike part intermediate the closure and receptacle rim.
  
[List of Patents for class 220 subclass 203.10]    203.10Closure is spring-biased:
 This subclass is indented under subclass 203.09.  Device wherein the closure is urged by a resilient mass to a closed position, so that the relative movement between the closure and receptacle rim is against the urging force of the resilient mass.
  
[List of Patents for class 220 subclass 203.11]    203.11Flexible, resilient vent closing member:
 This subclass is indented under subclass 203.01.  Device wherein the vent or valve comprises a deformable member yielding in response to a changing pressure within a receptacle.
  
[List of Patents for class 220 subclass 203.12]    203.12Flexible ringlike vent closing member (e.g., O-ring):
 This subclass is indented under subclass 203.11.  Device wherein said vent closing member comprises a resilient loop deformable in the radial or longitudinal direction in response to pressure within or without a receptacle.
  
[List of Patents for class 220 subclass 203.13]    203.13Stopper-type vent closure:
 This subclass is indented under subclass 203.11.  Device wherein said flexible member comprises a flexible plug engaged in a vent opening in the closure, said plug being deformable in response to pressure within or without a receptacle.
  
[List of Patents for class 220 subclass 203.14]    203.14Flexible opening in stopper:
 This subclass is indented under subclass 203.13.  Device wherein said flexible plug engaged in a vent opening in the closure deforms in response to pressure in order to open passageways through the plug to relieve pressure.
  
[List of Patents for class 220 subclass 203.15]    203.15Resilient sheetlike member retains separate vent closure:
 This subclass is indented under subclass 203.11.  Device wherein said vent closing member comprises a vent closure member or valve structure which is held in place by a separate, flexible sheetlike member, said vent closure member moving against said flexible sheet member in response to pressure.
  
[List of Patents for class 220 subclass 203.16]    203.16Resilient sheetlike member closes vent opening:
 This subclass is indented under subclass 203.11.  Device wherein said vent closing member comprises a flexible sheetlike member which covers said vent, and moves away from said vent in response to pressure.
  
[List of Patents for class 220 subclass 203.17]    203.17Self-closing aperture in member:
 This subclass is indented under subclass 203.16.  Device wherein said sheetlike member contains a slit therein, said slit opening in response to pressure, and closing due to the member"s elasticity after the pressure condition is removed.
  
[List of Patents for class 220 subclass 203.18]    203.18Diaphragm-type member:
 This subclass is indented under subclass 203.16.  Device wherein said sheetlike member comprises a relatively thin membranelike member having a peripheral edge portion, said member being adapted to be associated with a surrounding or encompassing tubular rigid structure to extend transversely thereof to form a closing wall for said tubular structure, the outer peripheral edge of said membrane being in sealing relationship with the encompassing wall of said tubular structure.
  
[List of Patents for class 220 subclass 203.19]    203.19Specified valve structure to provide a diverse function (e.g., leakage preventing, lock releasing):
 This subclass is indented under subclass 203.01.  Device wherein one or more valves are provided, and at least one of the valves has a specific structure which provides an auxiliary function, such as preventing leakage of receptacle contents, or providing means to release a safety lock.
(1) Note. To be classified in this subclass, the diverse function must be something other than that which is inherent to the valve structure, such as sealing the receptacle during normal operation and venting and valving the receptacle.

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316,for a closure having pressure responsive means to release the closure from its closed position.

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137, Fluid Handling,   subclasses 38+ for a fluid handling system which responds to a change in the position of the system as a whole.
  
[List of Patents for class 220 subclass 203.2]    203.2Float or gravity valve:
 This subclass is indented under subclass 203.19.  Device wherein said valve structure includes an element that moves to provide the secondary function by (a) its own buoyancy, due to fluid level in the receptacle (e.g., float valve), or by (b) its own weight, due to gravity (e.g., gravity valve).
  
[List of Patents for class 220 subclass 203.21]    203.21Ball valve:
 This subclass is indented under subclass 203.19.  Device wherein said valve structure includes a spherical element which moves to close a vent opening to provide the secondary function.
  
[List of Patents for class 220 subclass 203.22]    203.22Locking feature:
 This subclass is indented under subclass 203.19.  Device wherein said secondary function comprises a feature which maintains the closure in a locked condition so as to eliminate the risk of unintentional removal.
  
[List of Patents for class 220 subclass 203.23]    203.23Spring-biased, axially translating member:
 This subclass is indented under subclass 203.01.  Device wherein a plate, plunger or other member is provided within the vent or valve for reciprocation along the major axis of the closure, wherein the member is urged by a resilient mass such that a change in pressure in the receptacle works against the resilient mass to translate the member.
  
[List of Patents for class 220 subclass 203.24]    203.24Two-way pressure relief valve:
 This subclass is indented under subclass 203.23.  Device wherein the vent or valve provides for flow of the pressure medium in two or more directions.
  
[List of Patents for class 220 subclass 203.25]    203.25Annular sealing member deflecting along axis perpendicular to surface:
 This subclass is indented under subclass 203.24.  Device wherein in addition to the spring-biased, axially translating member, a flexible, washerlike sealing member is provided which generally spans the vent or valve opening, and which deflects inwardly or outwardly with respect to the closure in response to pressure.
  
[List of Patents for class 220 subclass 203.26]    203.26Plural springs biasing individual members:
 This subclass is indented under subclass 203.24.  Device wherein an individual resilient mass is provided to each of a plurality of pressure responsive axially translating members, so that each member is individually urged in the appropriate direction.
(1) Note. For valves which have only one pressure responsive member biased by a spring, and have another member either of a different nature (ball valve, flexible valve, etc.) or simply not spring-biased, the invention will not be classified in this subclass, but in subclass 203.24 above.
  
[List of Patents for class 220 subclass 203.27]    203.27One-way, outwardly venting pressure relief valve:
 This subclass is indented under subclass 203.23.  Device wherein the vent or valve provides for flow of the pressure medium in only one direction.
  
[List of Patents for class 220 subclass 203.28]    203.28Two-way pressure relief valve:
 This subclass is indented under subclass 203.01.  Device wherein the vent or valve provides for flow of the pressure medium in two or more directions.
  
[List of Patents for class 220 subclass 203.29]    203.29One-way, outwardly venting pressure relief valve:
 This subclass is indented under subclass 203.01.  Device wherein the vent or valve provides for flow of the pressure medium in only one direction.
  
[List of Patents for class 220 subclass 210]    210Key controlled:
 This subclass is indented under subclass 200.  Device including a means responsive to the insertion of a key for operating or permitting the operation of a closure.
  
[List of Patents for class 220 subclass 211]    211Motor driven:
 This subclass is indented under subclass 200.  Device including means to open and close the closure and a motor to operate the means.
  
[List of Patents for class 220 subclass 212]    212Combined or convertible:
 This subclass is indented under subclass 200.  Device wherein the closure is 1) associated with a disparate article or 2) when not in use as a closure will function as a disparate article or is modifiable or rearrangeable to function as a disparate article.

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215, Bottles and Jars,   subclass 228 for combined or convertible closures of that class.
  
[List of Patents for class 220 subclass 212.5]    212.5With handle:
 This subclass is indented under subclass 212.  Subject matter wherein the closure includes an element which is to be grasped by a human hand for the purpose of manipulating the closure.

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269,and 270+, for a closure having a frangible member or portion and a gripping means for use in tearing open the closure.
317,for a handle which secures a closure while pouring.
318,for a handle attached closure securing means.
330,for a closure mounted for compound movement about a closure bail.
751,for a hanging means for a container.
752+,for a handle, handle component, or handle adjunct.
  
[List of Patents for class 220 subclass 213]    213Convex or concave closure conforms to curvature of opening to be closed:
 This subclass is indented under subclass 200.  Devices wherein the closure is convex or concave in cross-section and closes an opening in a wall, such wall having the same or similar curvature in cross-section.
  
[List of Patents for class 220 subclass 214]    214With separately applied sealing means for indicating unauthorized closure movement:
 This subclass is indented under subclass 200.  Device provided with means in addition to the closure for the purpose of indicating unauthorized movement of the closure, said means being removable without destruction of the closure.
(1) Note. Usually the sealing means consists of a wire or chain element looped through the closure and a locking hasp and the ends of such element being connected by a lead seal.
  
[List of Patents for class 220 subclass 215]    215With heat insulating insert or captive air space:
 This subclass is indented under subclass 200.  Device constructed to reduce conductivity of heat by having (1) an insert having a low heat conducting capacity or (2) being made of hollow form providing a dead air space.
  
[List of Patents for class 220 subclass 216]    216Floating closure:
 This subclass is indented under subclass 200.  Closures which float on the top of the contained liquid and are in the nature of followers.

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52, Static Structures (e.g., Buildings),   subclasses 3+ for article supported covers.
73, Measuring and Testing,   subclass 322.5 for floats, per se.
137, Fluid Handling,   subclass 202 for float controlled discriminating outlet (or vent) for gas, subclasses 430+ for rectilinearly moving floats which are co-axial with the valve or part controlled thereby, note particularly subclass 433 in which the float is the valve or closure or is rigid therewith.
  
[List of Patents for class 220 subclass 217]    217With liquid gasket:
 This subclass is indented under subclass 216.  Devices including a confined liquid acting at the juncture of the closure and the receptacle mouth to prevent the escape of gaseous contents.

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228,for liquid or semiliquid gaskets in general.
  
[List of Patents for class 220 subclass 218]    218Sectional, relatively moveable:
 This subclass is indented under subclass 216.  Device wherein the closure is constructed of sections movable relative to one another.
  
[List of Patents for class 220 subclass 219]    219Floating closure:
 This subclass is indented under subclass 216.  Device wherein the closure is provided with means providing for the drainage or discharge of liquid flowing from the upper surface thereof.
  
[List of Patents for class 220 subclass 220]    220With support for aground closure:
 This subclass is indented under subclass 216.  Device provided with means for supporting or sustaining the weight of the closure when the closure is not floating on top of the container contents.
  
[List of Patents for class 220 subclass 221]    221With gasket means intermediate closure rim and receptacle:
 This subclass is indented under subclass 216.  Device including means acting at the juncture of the closure and on adjacent member to oppose the passage of fluid therebetween.
  
[List of Patents for class 220 subclass 222]    222Attached to closure:
 This subclass is indented under subclass 221.  Device wherein the means is secured to the closure.
  
[List of Patents for class 220 subclass 223]    223Magnetic means urges gasket towards receptacle:
 This subclass is indented under subclass 222.  Device wherein the gasket means is retained in operative position by magnetic means.
  
[List of Patents for class 220 subclass 224]    224Mechanical means urges gasket towards receptacle:
 This subclass is indented under subclass 222.  Device wherein the gasket means is retained in operative position by mechanical means.
  
[List of Patents for class 220 subclass 225]    225Fluid filled gasket:
 This subclass is indented under subclass 222.  Device wherein the gasket is distended by captive gas or liquid.
  
[List of Patents for class 220 subclass 226]    226Resilient foam or stuffed gasket:
 This subclass is indented under subclass 222.  Device wherein the gasket means is formed of resilient foam or is distended by a material stuffing.
  
[List of Patents for class 220 subclass 227]    227With vent means:
 This subclass is indented under subclass 216.  Device wherein the closure means is provided with an opening for the escape of gas from the receptacle which it closes.
  
[List of Patents for class 220 subclass 228]    228Having liquid or semi-liquid gasket:
 This subclass is indented under subclass 200.  Device including a confined liquid or semiliquid (paste) acting at the juncture of the closure and receptacle mouth to prevent the escape of gaseous contents.

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217,for liquid gaskets acting with floating closures.

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174, Electricity: Conductors and Insulators,   subclass 17.06 for hermetic sealed envelopes, boxes and housings where a liquid is used to seal a joint, and subclass 31.5 for electric bushings, terminal and lead-in structures where a liquid is used to seal a joint.
217, Wooden Receptacles,   subclass 105 for automatic valved bungs with liquid seal.
222, Dispensing,   subclass 188 for dispensers with a fluid trap means to seal inlets or outlets.
277, Seal for a Joint or Juncture,   for a generic sealing means or process, subclasses 590+ for a seal between fixed parts or having static contact against relatively movable parts.
285, Pipe Joints or Couplings,   subclasses 10+ for liquid sealed pipe joints.
  
[List of Patents for class 220 subclass 229]    229Closure penetrated through intersecting slits:
 This subclass is indented under subclass 200.  Device wherein the closure is constructed from a resilient type material having an access opening therethrough formed by a plurality of radially disposed intersecting slits terminating at their outer ends inwardly of the periphery of the closure. Ingress or egress therethrough is gained by deforming the access opening formed by said slits.
  
[List of Patents for class 220 subclass 230]    230Magnetic:
 This subclass is indented under subclass 200.  Device wherein the closure is retained in covering relation to the receptacle mouth by magnetic means.
  
[List of Patents for class 220 subclass 231]    231With vacuum breaker or manually operable vent:
 This subclass is indented under subclass 200.  Device wherein a vacuum within the closed receptacle is broken by (1) means to impart an initial opening movement to the closure which then disengages to permit the opening to be concluded by another operator or manually or (2) a separate manually operated valve means.

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203.01+,for a receptacle closure comprising a pressure responsive vent or valve.
271,for vents in "POP-TOP" type closures and 367 for closures in general having vent means therein.
  
[List of Patents for class 220 subclass 232]    232Having inflatable gasket or packing:
 This subclass is indented under subclass 200.  Device including seal means positioned at the juncture of the closure and the receptacle to oppose the passage of fluid there-between, said seal means having a closed chamber with at least one deformable wall and externally accessible means to introduce fluid into said chamber to expand and move said wall to effect the sealing of the closure to the container.
  
[List of Patents for class 220 subclass 233]    233Externally adjustable plug or gasket:
 This subclass is indented under subclass 200.  Device wherein a plug or stopper type closure or gasket therefor is provided with adjustment means by which the plug or gasket may be expanded or contracted to or from its operable position, such adjustment means being located at a point external of the closed receptacle.
(1) Note. Plugs and gaskets therefor are found together in this subclass for it is impossible to determine, in most instances, when the expandable portion is a gasket or part of the closure itself.

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215, Bottles and Jars,   subclasses 358+ for expanding stopper for bottles and jars.
217, Wooden Receptacles,   subclasses 78 , 79, 108, and 109 for expanding closures and bungs for wooden barrels.
  
[List of Patents for class 220 subclass 234]    234Closure carried gasket and expander means:
 This subclass is indented under subclass 233.  Device wherein the gasket or packing is carried by the closure and is radially deformable between its operative and inoperative positions and wherein the manipulation of said gasket or packing is effected by expansion means likewise carried by said closure.
  
[List of Patents for class 220 subclass 235]    235Screw actuated:
 This subclass is indented under subclass 234.  Device wherein a threaded element is employed to effect the coaction between the deformable means and the expander member.
  
[List of Patents for class 220 subclass 236]    236With retainer:
 This subclass is indented under subclass 235.  Device wherein means in addition to the deformable means and the expander member are provided for securing the closure to the container.
  
[List of Patents for class 220 subclass 237]    237With wedging expander:
 This subclass is indented under subclass 235.  Device wherein the expander member is provided with a tapered surface which engages and expands the deformable means.
  
[List of Patents for class 220 subclass 238]    238Cam actuated:
 This subclass is indented under subclass 234.  Device wherein means are provided which have a specially configured surface to effect the coaction of the deformable means with the expander member.
  
[List of Patents for class 220 subclass 239]    239Fluid pressure:
 This subclass is indented under subclass 233.  Device wherein the gasket or packing is manipulated or adjusted by fluid pressure.
  
[List of Patents for class 220 subclass 240]    240With seal means biased by internal pressure:
 This subclass is indented under subclass 200.  Devices wherein the gasket or seal is biased into sealing engagement between the closure and receptacle opening by means of fluid pressure generated from or contained within the receptacle.
  
[List of Patents for class 220 subclass 241]    241Face plate type:
 This subclass is indented under subclass 200.  Device provided with one or more openings for communicating with devices concealed by the closure. Such openings may have means for coupling a device in the opening.
(1) Note. Devices of this kind are placed in this subclass even though disclosed solely for covering an opening in a building wall, floor or ceiling.

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3.7,for outlet type boxes with adjustable parts.

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70, Locks,   subclasses 423+ for keyhole guards, 450 for structures involving that portion of a lock housing through which the bolt projects and 452 for escutcheons.
174, Electricity: Conductors and Insulators,   subclasses 66 and 67 for covers or face plates for boxes housing electrical apparatus.
248, Supports,   subclass 345 for canopies for protecting or concealing the connection between a bracket or suspension device and the fixed support.
250, Radiant Energy,   subclass 76 for face plates provided with fluorescent or phosphorescent material.
292, Closure Fasteners,   subclass 357 for door knob rose plates.
362, Illumination,   subclasses 404+ for devices applied to a pipe or conduit of brackets or chandeliers where they are secured to a wall or ceiling to hide the joint.
  
[List of Patents for class 220 subclass 242]    242With closure for face plate opening:
 This subclass is indented under subclass 241.  Device having additional closures for the face plate opening or openings.

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174, Electricity: Conductors and Insulators,   subclass 67 for such means in face plates for boxes housing electrical apparatus.
  
[List of Patents for class 220 subclass 243]    243External and internal bar or closure:
 This subclass is indented under subclass 200.  Device comprising outer and inner members, such as closures and bars, joined by operating means, such as a screw, whereby the material of the receptacle is clamped between these members.
(1) Note. The inner member may be a lug or cross member integral with the receptacle.

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40,for such devices in which the bar is fastened in place by special bayonet-slot connection.
46,for packing features.
  
[List of Patents for class 220 subclass 244]    244Closure mounted for swinging (e.g., hinged):
 This subclass is indented under subclass 243.  Device wherein the closure is mounted for a turning motion about a pivot to open or close a passage.
  
[List of Patents for class 220 subclass 245]    245Plural operators:
 This subclass is indented under subclass 243.  Device wherein two or more operating means interjoin the closure and bar.
  
[List of Patents for class 220 subclass 246]    246Spring biased operator:
 This subclass is indented under subclass 243.  Device wherein a spring biased operating means interjoins the closure and the bar.
  
[List of Patents for class 220 subclass 247]    247Eccentric operator:
 This subclass is indented under subclass 243.  Device wherein the operator is provided with eccentric means which must be actuated to remove the closure.
  
[List of Patents for class 220 subclass 248]    248Sectional bar:
 This subclass is indented under subclass 243.  Device wherein the bar consists of two or more individual sections.
  
[List of Patents for class 220 subclass 249]    249Bar tethered to closure support:
 This subclass is indented under subclass 243.  Device provided with flexible means extending between the bar and closure support by means of which the relative movement is limited.
  
[List of Patents for class 220 subclass 250]    250Integral bar and operator:
 This subclass is indented under subclass 243.  Device wherein the bar and the operator are of integral construction.
  
[List of Patents for class 220 subclass 251]    251Bar and operator removable with closure as a unit:
 This subclass is indented under subclass 243.  Device wherein the bar and operator are attached to the closure and removable therewith.
  
[List of Patents for class 220 subclass 252]    252Pivotally or slidably mounted semispherical hood-type closure:
 This subclass is indented under subclass 200.  Device wherein the closure is a semispherical dome movably mounted to allow at least a portion thereof to be shifted to an underlying or overlying position relative to a corresponding dome section or the receptacle.
  
[List of Patents for class 220 subclass 253]    253Closure members having alignable openings:
 This subclass is indented under subclass 200.  Device comprising superposed closure members, each member being provided with an opening therethrough, alignment of said openings defines the open position of the closure and disalignment thereof defining the closed position of the closure.

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525,for a compartmented container with a closure that permits access to one compartment while blocking another.
  
[List of Patents for class 220 subclass 254.1]    254.1Secondary closure within parameter of primary closure:
 This subclass is indented under subclass 200.  Subject matter having a supplemental content retaining cover located within the confines of the main closure/content retaining cover to close an opening therein.
(1) Note. In order to preserve and provide antecedent basis for the term "closure" appearing in subclass definition 200, the word "closure" followed directly by the more descriptive "content retaining cover" was used.
  
[List of Patents for class 220 subclass 254.2]    254.2Plural secondary closures:
 This subclass is indented under subclass 254.1.  Subject matter including more than one supplemental content retaining cover.
  
[List of Patents for class 220 subclass 254.3]    254.3Pivotable secondary closure:
 This subclass is indented under subclass 254.1.  Subject matter wherein the supplemental content retaining cover is attached to the main closure/content retaining cover by a connection (e.g., hinge) that allows it to open or close by a swinging movement.

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810through 849, for a receptacle having a hinged closure.
819,for a receptacle having multiple closure portions which are swingably attached to each other.
822,for a receptacle having multiple pivotable portions.
  
[List of Patents for class 220 subclass 254.4]    254.4About axis at right angle to plane of closure:
 This subclass is indented under subclass 254.3.  Subject matter wherein the supplemental content retaining cover is swingable about a pivot line so that it moves parallel to the plane formed by the opening in the receptacle.

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816,for a receptacle having a closure which is swingable about a pivot line so that the closure moves parallel to the plane formed by the opening in the receptacle.
820through 824, for a receptacle having a closure which is swingable about a pivot line so that the closure moves parallel to the plane formed by the opening in the receptacle.
  
[List of Patents for class 220 subclass 254.5]    254.5Biased:
 This subclass is indented under subclass 254.3.  Subject matter including structure which urges the swingable supplemental content retaining cover towards an open or closed position.

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281through 283, for a receptacle having a closure that is constructed to be released from interlocking engagement with the passage mouth upon the application of axial or radial pressure on the closure or receptacle.
827through 830, for a receptacle having an element which urges the closure in its opening or closing movement and which is not integrally formed with the receptacle or closure.
838,for a receptacle wherein significance is attributed to means urging the closure in its opening or closing movement.
  
[List of Patents for class 220 subclass 254.6]    254.6And pivotable primary closure:
 This subclass is indented under subclass 254.3.  Subject matter wherein the main closure/content retaining cover is attached to the receptacle by a connection (e.g., hinge) that allows opening or closing thereof by a swinging movement.
  
[List of Patents for class 220 subclass 254.7]    254.7Secondary closure secured by resilient distortion and retained by preformed member (e.g., detent):
 This subclass is indented under subclass 254.1.  Subject matter wherein the supplemental content retaining cover includes preformed locking structure designed to induce a distortion of the cover or passage mouth during their mating cooperation, the return of the distorted portion to normal position serves to cause an interlock between the content retaining cover and passage mouth, preventing their casual separation.

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780through 795, for a closure which is completely removable from a receptacle and includes a detent.
  
[List of Patents for class 220 subclass 254.8]    254.8Secondary closure guided in rotary movement (e.g., screw):
 This subclass is indented under subclass 254.1.  Subject matter including thread like elements and wherein a secondary content retaining cover is directed in rotary and reciprocatory movement about the thread like elements so as to be readily, physically disassociated from its supporting structure.

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288through 304, for a receptacle having a closure that is directed in rotary and reciprocatory movement about screw threads or thread like elements so as to be readily, physically disassociated from its supporting structure.
  
[List of Patents for class 220 subclass 254.9]    254.9Secondary closure guided in reciprocating movement:
 This subclass is indented under subclass 254.1.  Subject matter including guide means supporting the supplemental content retaining cover for sliding movement in alternate directions during opening and closing of the receptacle.

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213,for a reciprocating closure having an arcuate shape and path conforming to the receptacle opening.
252,for a slidably mounted semispherical hood-type closure.
255,for a receptacle wherein two or more closures are joined by connecting means so that movement of one of the closures affects simultaneous movement in another.
345.1through 345.6, 348 through 251, for a receptacle including guide means supporting the closure for sliding movement in alternate directions during opening and closing of the receptacle.
811through 816, for a reciprocating closure which also pivots.
  
[List of Patents for class 220 subclass 255]    255Closures interconnected for common opening movement:
 This subclass is indented under subclass 200.  Device wherein two or more closures are joined by connecting means so that movement of one of the closures affects simultaneous movement in another.
  
[List of Patents for class 220 subclass 255.1]    255.1Frangible inner closure:
 This subclass is indented under subclass 255.  Subject matter wherein movement an outer closure/content retaining cover is structured to affect a simultaneous rupturing an inner closure/content retaining cover in order to gain access to the content.
(1) Note. In order to preserve and provide antecedent basis for the term "closure" appearing in subclass definition 200 and 255, the word "closure" followed directly by the more descriptive "content retaining cover" was used.
  
[List of Patents for class 220 subclass 256.1]    256.1Superposed closures for common opening:
 This subclass is indented under subclass 200.  Subject matter wherein an opening is closed by a first closure/content retaining cover and a second closure/content retaining cover which may underlay or overlay the first closure/content retaining cover.
(1) Note. In order to preserve and provide antecedent basis for the term "closure" appearing in subclass definition 200, the word "Closure" followed directly by the more descriptive "content retaining cover" was used.
  
[List of Patents for class 220 subclass 257.1]    257.1Destructible outer closure:
 This subclass is indented under subclass 256.1.  Subject matter wherein the first closure/content retaining cover overlays the second closure/content retaining cover and wherein removal of an first closure/content retaining cover destroys its closing function
  
[List of Patents for class 220 subclass 257.2]    257.2Outer closure includes lifting tab:
 This subclass is indented under subclass 257.1.  Device Subject matter wherein the first closure/content retaining cover includes a projection which is intended to aid in removing it from the container.
  
[List of Patents for class 220 subclass 258.1]    258.1Destructible inner closure:
 This subclass is indented under subclass 256.1.  Subject matter wherein removal of the second closure/ content retaining cover destroys its closing function.
  
[List of Patents for class 220 subclass 258.2]    258.2Inner closure includes lifting tab:
 This subclass is indented under subclass 258.1.  Subject matter wherein the second closure/content retaining cover includes a projection which is intended to aid in its removal from the container.
  
[List of Patents for class 220 subclass 258.3]    258.3Frangible inner closure:
 This subclass is indented under subclass 258.1.  Subject matter wherein second closure/content retaining cover, or a portion thereof, is constructed to be ruptured or cut away in order to gain access to the receptacle contents.
(1) Note. Rupturable solder joints are included.
  
[List of Patents for class 220 subclass 258.4]    258.4Outer closure includes cutting or penetrating means:
 This subclass is indented under subclass 258.3.  Subject matter wherein the first closure/content retaining cover includes structure intended to puncture the second closure/content retaining cover.
  
[List of Patents for class 220 subclass 258.5]    258.5About line, region, or point of weakness:
 This subclass is indented under subclass 258.3.  Subject matter wherein the rupture or cut is about a predetermined area of weakness.
  
[List of Patents for class 220 subclass 259.1]    259.1Pivotable:
 This subclass is indented under subclass 256.1.  Subject matter wherein at least one closure/content retaining cover is attached to the receptacle by a connection (e.g., hinge) that allows opening or closing thereof by a swinging movement.

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16, Miscellaneous Hardware (e.g., Bushing, Carpet Fastener, Caster, Door Closer, Panel Hanger, Attachable or Adjunct Handle, Hinge, Window Sash Balance, etc.),   subclasses 221 through 392for a hinge capable of application to a receptacle.
222, Dispensing,   particularly subclasses 556 through 558for a dispenser including a pivotable closure
  
[List of Patents for class 220 subclass 259.2]    259.2Plural pivotable closures:
 This subclass is indented under subclass 259.1.  Subject matter comprising multiple hinged closures/ content retaining cover portions.

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818,for a closure comprising plural pivotable sections in which the sections are connected.
822,for a closure pivotable about an axis at right angle to plane of closure and including plural sections.
  
[List of Patents for class 220 subclass 259.3]    259.3Closure guided in rotary movement (e.g., screw)
 This subclass is indented under subclass 256.1.  Subject matter wherein the first closure/content retaining cover is directed in rotary and reciprocatory movement about screw threads or thread like elements so as to be readily, physically disassociated from its supporting structure.
(1) Note. Screw-threaded rings for holding a closure in place will be found in this class 220 subclass 319.

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215, Bottles and Jars,   subclasses 329 through 340for screw thread structure used on closures for bottles and jars.
285, Pipe Joints or Couplings,   particularly subclasses 189 through 222, especially subclasses 201-210 for bushings and similar fittings applied to plates, even though disclosed for receiving closures.
  
[List of Patents for class 220 subclass 259.4]    259.4Inner closure guided in rotary movement:
 This subclass is indented under subclass 259.3.  Subject matter wherein the second closure/content retaining cover underlays the first one and wherein the second closure/ content retaining cover is directed in rotary and reciprocatory movement about screw threads or thread like elements so as to be readily, physically disassociated from its supporting structure.
  
[List of Patents for class 220 subclass 259.5]    259.5Closure guided in reciprocating movement:
 This subclass is indented under subclass 256.1.  Subject matter including guide means supporting at least one of the closures/content retaining covers for sliding movement in alternate directions during opening and closing of the receptacle.
  
[List of Patents for class 220 subclass 260]    260With closure opening arrangements for means (e.g., opening devices):
 This subclass is indented under subclass 200.  Device wherein the closure is specifically designed or is provided with specific means, the sole purpose of which is to facilitate or assist in the opening or removal thereof.
(1) Note. Handgrips, threads, guide means, etc., are not considered opening or removing adjuncts.
(2) Note. The device may open some other part of the receptacle than the end member or "closure".
(3) Note. For tools, per se, which are capable of repeated use for removing closure caps and/or corks from receptacles, see Class 7, Compound Tools, subclasses 126 and 151+ and Class 81, Tools, subclasses 3.07+, especially subclass 3.15 for a receptacle or closure having an attached opener for use only on other receptacle or closures.

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295+,for bottle and jar opening devices.

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15, Brushing, Scrubbing, and General Cleaning,   subclass 257.075 for a closure which is movable away from the opening toward which it is normally biased, by pressure thereagainst of an applicator, to permit entry of the applicator into a coating material supply container.
30, Cutlery,   subclasses 400+ for can openers which operate by cutting and see the Notes to Class 30, Cutlery, subclass 3 for the line.
211, Supports: Racks,   subclass 69.3 for an inkstand and penrack combined, including counterweight or spring biasing means to displace a closure to permit access to the ink, which means are made effective by removal of a pen from its support.
215, Bottles and Jars,   subclasses 250+ for frangible closure.
  
[List of Patents for class 220 subclass 261]    261Opening means comprises explosive charge:
 This subclass is indented under subclass 200.  Device wherein the opening means consists of or is assisted by an explosive charge.
  
[List of Patents for class 220 subclass 262]    262Operator actuates closure in its opening or closing movement (e.g., foot pedal):
 This subclass is indented under subclass 260.  Device wherein the closure is provided with a mechanical operator means for imparting movement thereto in the opening and closing movement.
  
[List of Patents for class 220 subclass 263]    263Hinged closure:
 This subclass is indented under subclass 262.  Device wherein the closure is hingedly attached to the receptacle.
  
[List of Patents for class 220 subclass 264]    264Biasing means:
 This subclass is indented under subclass 263.  Device provided with means for (1) urging the closure to an open or a closed position, or (2) retaining the closure in an open or closed position by a biasing action thereon, e.g., spring or weight.
  
[List of Patents for class 220 subclass 265]    265Frangible member or portion:
 This subclass is indented under subclass 260.  Device wherein the closure, or a portion thereof, is constructed to be ruptured or cut away in order to gain access to the receptacle contents. Rupturable solder joints are included.
(1) Note. Includes inner frangible closures which do not serve as packing means for the outer closure.
(2) Note. Includes puncturing devices for diaphragms, which permits of gas discharge.
(3) Note. Includes other parts of the receptacle than the end member or "closure".

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89.1+,for frangible diaphragms which act as outlets, when ruptured, for gas or a liquid at high pressure.
610+,for a seam or joint between a side wall and end wall.
612+,for closures fastened in place by solder or cement or other conventional means, and which are not of the "knockout type.

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137, Fluid Handling,   subclasses 68.11+ for fluid flow control means controlled by a frangible member.
215, Bottles and Jars,   subclasses 250+ for frangible caps for bottles and jars.
222, Dispensing,   subclasses 541.1+ for dispensing devices with frangible elements for outlets.
  
[List of Patents for class 220 subclass 266]    266About line or point of weakness:
 This subclass is indented under subclass 265.  Device wherein the rupture or cut is about a predetermined line or point of weakness.

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215, Bottles and Jars,   subclasses 250+ for frangible closures under that class definition.
  
[List of Patents for class 220 subclass 267]    267With cutting device:
 This subclass is indented under subclass 266.  Device provided with means to cut at the predetermined line or point of weakness.
  
[List of Patents for class 220 subclass 268]    268Non-removable member or portion:
 This subclass is indented under subclass 266.  Device wherein the closure, or portion thereof, e.g., strip, remains attached to the receptacle following the opening operation.
(1) Note. Devices of this type are usually intended to solve a litter or disposal problem by not allowing the opening portion to become completely unattached from the receptacle.
  
[List of Patents for class 220 subclass 269]    269Gripping means attached to or integral with member or portion (e.g., pull tab):
 This subclass is indented under subclass 268.  Device provided with means to grip the member or portion, said gripping means being integral with or attached to the strip or portion.
  
[List of Patents for class 220 subclass 270]    270With gripping means (e.g., pull tab):
 This subclass is indented under subclass 266.  Device provided with means to grip the member or portion.
  
[List of Patents for class 220 subclass 271]    271Provided with vent:
 This subclass is indented under subclass 270.  Device having a vent which is opened when the pull tab or gripping means is pulled.

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231,for closures provided with a vacuum breaker or manually operable vent; and 366 for specific vent means in a closure.

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215, Bottles and Jars,   subclasses 307+ for bottle and jar closures having vents therein.
  
[List of Patents for class 220 subclass 272]    272Rivet connection between pull tab and removable portion integral with pull tab:
 This subclass is indented under subclass 270.  Device wherein the pull tab and removable portion connected by rivet from and integral with the pull tab.
  
[List of Patents for class 220 subclass 273]    273Rivet connection between pull tab and removable portion integral with removable portion:
 This subclass is indented under subclass 270.  Device wherein the pull tab and removable portion are connected by a rivet formed from and integral with the removable portion.
  
[List of Patents for class 220 subclass 274]    274Adapted for engagement with special tool (e.g., slotted key):
 This subclass is indented under subclass 270.  Device wherein the means to grip the member or portion is constructed to accommodate a special tool such as, for example, a slotted key.

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284,for special tool engaging means associated with nonfrangible closures.
  
[List of Patents for class 220 subclass 275]    275With strip or tool guide:
 This subclass is indented under subclass 274.  Device provided with means to guide the portion (strip) or to guide the tool during the opening operation.
  
[List of Patents for class 220 subclass 276]    276About seam:
 This subclass is indented under subclass 266.  Device wherein the line of weakness extends about the circumference of the receptacle or closure, near or at the juncture of the receptacle and closure.
  
[List of Patents for class 220 subclass 277]    277With cutting, punching, or cutter accommodating means:
 This subclass is indented under subclass 265.  Device wherein the closure, or portion thereof, is constructed to be ruptured or cut away by a cutting or punching operation; or constructed to receive a cutting or punching tool.

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30, Cutlery,   subclasses 400+ for opening devices which are cutting implements and which may be mounted on the receptacle for the cutting operation but which are completely disassociated from the receptacle to empty the receptacle contents.
221, Article Dispensing,   subclasses 30+ for article dispensing devices including or combined with cutter or punch means to form an outlet opening in the supply receptacle or in the wrapper therefor.
  
[List of Patents for class 220 subclass 278]    278Puncturing tool serves as closure:
 This subclass is indented under subclass 277.  Device comprising a puncturing element which also serves as a closure for the punched opening.
  
[List of Patents for class 220 subclass 279]    279Wire, string, or like (e.g., rip cord):
 This subclass is indented under subclass 277.  Device comprising a cutting operation, the cutter being a wire, cord or the like.

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53, Package Making,   subclass 133 for machines to form a package having an opening device incorporated therewith (e.g., a tear strip).
  
[List of Patents for class 220 subclass 280]    280About seam:
 This subclass is indented under subclass 279.  Device in which the wire, cord or the like is located in a seam joining parts of a receptacle.
  
[List of Patents for class 220 subclass 281]    281Released by axial or radial pressure:
 This subclass is indented under subclass 260.  Device wherein the closure is constructed to be released from interlocking engagement with the passage mouth upon the application of axial or radial pressure on the closure or receptacle.

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215, Bottles and Jars,   subclass 301 for opening devices under that class definition actuated by downwardly applied force.
  
[List of Patents for class 220 subclass 282]    282Closure tilts on fulcra portions or rocker points:
 This subclass is indented under subclass 281.  Device wherein the closure or passage mouth is provided with fulcra or rocking points, downward pressure applied to the closure in the area adjacent said points will effect a tilting action of the closure and cause the opposite edge of the closure to abruptly pop up, thereby loosening the closure.

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283,for a hinged closure provided with fulcra portions or rocker points.
  
[List of Patents for class 220 subclass 283]    283Hinged closure:
 This subclass is indented under subclass 282.  Device wherein the closure is hinged to the receptacle.
  
[List of Patents for class 220 subclass 284]    284Special tool or tool engaging means:
 This subclass is indented under subclass 260.  Device wherein the closure is provided with (1) means to receive or accommodate a tool which is specially constructed to limit its use to the particular receiving means.

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210,wherein the tool is a "lock type" key.

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81, Tools,   subclasses 3.07+ for a receptacle closure remover tool, per se.
  
[List of Patents for class 220 subclass 285]    285Attached raising or pry-off means:
 This subclass is indented under subclass 284.  Device wherein the special tool is a lever or pry-off means and is attached to the closure or receptacle.
  
[List of Patents for class 220 subclass 286]    286Repositionable about closure periphery:
 This subclass is indented under subclass 285.  Device wherein the closure removing tool may be moved to various points around the periphery of the closure.
  
[List of Patents for class 220 subclass 287]    287Closure adaptable for various sizes or openings:
 This subclass is indented under subclass 200.  Device wherein the closure is adaptable to fit receptacle openings of various sizes.

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215, Bottles and Jars,   subclass 319 for resilient cap type closures designed to accommodate plural size.
  
[List of Patents for class 220 subclass 288]    288Removable closure guided in rotary movement (e.g., screw):
 This subclass is indented under subclass 200.  Device wherein the closure is directed in rotary and reciprocatory movement about screw threads or thread like elements so as to be readily, physically disassociated from its supporting structure.
(1) Note. Screw-threaded rings for holding a closure in place will be found in this class (220) subclass 319.

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215, Bottles and Jars,   subclasses 329+ for screw thread structure used on closures for bottles and jars.
285, Pipe Joints or Couplings,   particularly subclasses 189+ , especially subclasses 201+ for bushings and similar fittings applied to plates, even though disclosed for receiving closures.
  
[List of Patents for class 220 subclass 289]    289Threads formed or altered upon application of closure:
 This subclass is indented under subclass 288.  Device wherein the closure, or closure receiver, is deformed in situ to correspond with preformed threads on the closure receiver or closure, upon positioning said closure member.
  
[List of Patents for class 220 subclass 290]    290With means to hold closure in a full or partially open position:
 This subclass is indented under subclass 288.  Device wherein the closure is provided with structure to hold it in a position other than fully closed.
  
[List of Patents for class 220 subclass 291]    291Swinging and rotary:
 This subclass is indented under subclass 288.  Device in which the closure element has motion of rotation about a central axis and is also mounted for a swinging motion.
  
[List of Patents for class 220 subclass 292]    292Biased:
 This subclass is indented under subclass 288.  Device in which the connection for swinging motion is a biased pivot or is in the form of a spring.
  
[List of Patents for class 220 subclass 293]    293Quick removal (e.g., bayonet):
 This subclass is indented under subclass 288.  Device wherein the closure and receptacle are provided with interlocking means constructed to permit quick and easy removal or replacement of the closure, said means allowing the closure, when in passage blocking position, to be removed therefrom by rotating the closure less than 360 degrees.
  
[List of Patents for class 220 subclass 294]    294Elliptical closure flange or passage mouth:
 This subclass is indented under subclass 293.  Device wherein the interlocking means consists of an oval shaped closure, closure flange or passage mouth allowing the closure and passage mouth to be interlocked upon relative rotation therebetween; the interlocking of these parts occurs when the short axis of the ellipse is in contact with its coacting surface.
  
[List of Patents for class 220 subclass 295]    295With biased gasket or packing:
 This subclass is indented under subclass 293.  Device provided with a gasket or packing member and means apart from the inherent resilience of the gasket or packing for urging it into a sealing engagement between the closure and receptacle mouth.
  
[List of Patents for class 220 subclass 296]    296Interrupted threads:
 This subclass is indented under subclass 293.  Device wherein the interlocking means consists of a spiral, thread like member with a break or gap in the continuity of the spiral for the insertion or withdrawal of a member cooperating therewith to secure the closure across the passage.
  
[List of Patents for class 220 subclass 297]