U.S. PATENT AND TRADEMARK OFFICE
Information Products Division |
U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
Patents classified in a subclass may be accessed by either clicking on
the subclass number
preceding each subclass definition or on the
" " icon, below.
( please note that patents for some subclasses may not be available )
For classification search strategies, please refer to the
Classification Index
Explanation of Data web page.
(definitions have been obtained from the
Patents ASSIST CD-ROM which
is produced by the U.S. Patent and Trademark Office
Electronic Products Branch)
Class 433
DENTISTRY
Class Definition:
This class is a specific class under the broader class of
Surgery and includes methods directed to or including
specific dental steps, e.g., taking impressions of the teeth
or gums, adapting a plate or model to a particular mouth
formation, mounting teeth on a plate in a particular way,
etc.; apparatus, implements, and devices relating to the
treatment of teeth or gums, or the replacement of teeth.
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
APPARATUS
Inasmuch as this class is defined in terms of specific rather
than proximate function, many of the apparatus provided for
in this class are also provided for broadly in the proximate
function classes. Unless otherwise stated, patents claiming
such apparatus should be classified as follows: patents with
claims reciting structure peculiar to dentistry should be
placed as originals in Class 433. Use of the functional
adjective "dental" will not in itself cause placement in
Class 433. For example, "a dental mirror comprising...",
without further peculiar dental structure recited is
classified broadly with mirrors in Class 359, Optics: Systems
(Including Communication) and Elements (subclass 882 for a
mirror with a handle). However, the recitation of means to
prevent fogging or accumulation of water from a drill
dictates classification in Class 433. Use of nouns peculiar
to dentistry such as "a dental handpiece..." or "an
articulator comprising...", will cause classification in
Class 433. Apparatus and implements classified in Class 433
are generally those of the type used by a dentist. However,
Class 433 will take a device which is disclosed as being used
by individuals upon their own teeth, if not provided for
elsewhere.
METHODS
Methods including steps normally performed by a dentist are
classified in Class 433. Methods for making prostheses and
appliances and which contain only those steps which are
performed by a technician (e.g., molding, die shaping, etc.)
are classified in the appropriate manufacturing class.
Methods of treating a tooth by application of a named
composition are classified in Class 433 if more than the mere
application to a tooth is claimed (e.g., an additional step
of drilling, cleaning, filling, etc.).
PROSTHESES OR APPLIANCES
Class 433 will take claims to a dental prosthesis or
appliance, per se, unless claimed in terms of a particular
composition or material and no structural limitations are
recited. Patents including a claim to a composition, per se,
are classified in the appropriate composition class.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 592+ for miscellaneous
processes for making dental parts; subclasses 426.1 for
methods of disassembly; and subclasses 426.1+ for methods of
assembly.
72, Metal Deforming, subclasses 60+ and 343+ for forming
metal dentures or portions thereof by die shaping.
75, Specialized Metallurgical Processes, Compositions for Use
Therein, Consolidated Metal Powder Compositions, and Loose
Metal Particulate Mixtures, appropriate subclasses for alloys
for making and filling teeth, and other dental prostheses.
106, Compositions: Coating or Plastic, subclass 35 for
coatings or plastic compositions specialized for dental use.
134, Cleaning and Liquid Contact With Solids, appropriate
subclasses for methods and apparatus for cleaning dentures.
164, Metal Founding, appropriate subclasses for apparatus and
methods for casting dental parts of metal. See particularly
subclass 376 for investment type molds.
206, Special Receptacle or Package, subclass 63.5 for a
special container, package, or carrying case for a dental
implement, material, or article.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 16+ for processes of molding dental
parts of material other than metal, where a specific dental
step is not recited.
378, X-Ray or Gamma Ray Systems or Devices, appropriate
subclasses for X-ray sources, detectors, and related
apparatus, or methods of using such apparatus in dentistry
for producing images of teeth.
420, Alloys or Metallic Compositions, subclasses 526+ for
amalgams, per se, which may be useful for dental purposes.
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, appropriate
subclasses for processes for sterilizing or disinfecting
dental apparatus, and for apparatus for chemically
disinfecting or sterilizing dental implements.
427, Coating Processes, subclass 2.1 for processes for
making dental products comprising a coating step (e.g.,
dental implements, dental prostheses, etc.).
451, Abrading, subclasses 28+ for a process for abrading a
dental prosthesis.
520, Synthetic Resins or Natural Rubbers, appropriate
subclasses, particularly Class 523, subclasses 105+ for
nonmedicated compositions containing a synthetic resin having
utility specifically intended to be for contact with animal
living tissue, especially subclasses 109 and 113- 120 for
dental compositions or to processes of preparing said
compositions.
SUBCLASSES
Subclass:
1
VETERINARY DENTISTRY:
This subclass is indented under the class definition. Subject
matter peculiar to the treatment or replacement of the teeth
of animals.
Subclass:
2
ORTHODONTICS:
This subclass is indented under the class definition. Subject
matter relating to the correction of malocclusions, or the
maintenance of desired position or alignment of natural
teeth.
Subclass:
3
Tool:
This subclass is indented under subclass 2. Apparatus to be
used for manipulating or otherwise working with an
orthodontic appliance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 25+ for other dental tools.
subclasses 141+ for hand manipulatable tools.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 700+ for assembly and
disassembly tools.
81, Tools, appropriate subclasses for hand tools of both
general purpose and specific application which are not
provided for elsewhere.
140, Wireworking, appropriate subclasses for wireworking
tools.
Subclass:
4
Plier type:
This subclass is indented under subclass 3. Apparatus
comprising a hand manipulatable implement which includes two
elongated members pivotally connected intermediate their
lengths, each having cooperating work engaging jaw on one
side of the pivot and a handle portion on the opposite side
of the pivot.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 225+ and 268 for disassembly
and assembly pliers.
81, Tools, subclasses 300+ for pliers in general.
Subclass:
5
Including extra-oral force transmitting means:
This subclass is indented under subclass 2. Subject matter
wherein a tooth is aligned or positioned by a device which
includes a member that is worn externally of the mouth and
places the device under tension.
Subclass:
6
By mouthpiece-type retainer:
This subclass is indented under subclass 2. Subject matter
wherein a member which conforms in shape to a patient's teeth
is worn over the teeth to complete an orthodontic treatment
or to correct mild malocclusions.
Subclass:
7
By device having means to apply outwardly directed force
(e.g., expander):
This subclass is indented under subclass 2. Subject matter
wherein a tooth is positioned or aligned by a device which
includes two force applying surfaces movable in divergent
paths.
Subclass:
8
Bracket:
This subclass is indented under subclass 2. Subject matter
relating to an orthodontic element adapted to be fixed to a
tooth and having means for rigidly connecting or positioning
an arch wire or similar force transmitting strand thereto.
Subclass:
9
Cemented to tooth:
This subclass is indented under subclass 8. Subject matter
wherein the appliance is secured to a tooth by a settable
binding substance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 226+ for methods of treating or restoring
natural teeth by filling or cementing.
Subclass:
10
Having means to secure arch wire:
This subclass is indented under subclass 8. Subject matter
wherein the orthodontic element includes means for rigidly
connecting an arch wire or similar force transmitting strand
thereto.
Subclass:
11
Resiliently biased clamping member:
This subclass is indented under subclass 10. Subject matter
wherein the means for rigidly connecting arch wire to the
bracket includes an elastically yieldable retaining means.
Subclass:
12
Tension adjustment nut:
This subclass is indented under subclass 10. Subject matter
wherein a threaded member is provided and adapted to
cooperate with threads formed on either the bracket or an
arch wire engaged therewith whereby rotation of the threaded
member causes a change in the tension of the arch wire.
Subclass:
13
Separable securing means:
This subclass is indented under subclass 10. Subject matter
wherein the arch wire may be rigidly connected to the bracket
by a readily removable retaining element.
(1) Note. The retaining element must be readily removable
from both the arch wire and the bracket.
Subclass:
14
Lock pin:
This subclass is indented under subclass 13. Subject matter
wherein the removable retaining element comprises a rigid
member which is substantially elongated relative to any
lateral dimension.
Subclass:
15
Ligature wire:
This subclass is indented under subclass 13. Subject matter
wherein the removable retaining element comprises a length of
metallic strand which is adapted to be wrapped around the
arch wire and a portion of the bracket.
(1) Note. Patent claiming brackets having structure for
accommodating ligature wire have been placed as originals in
this subclass; i.e., the ligature wire need not be claimed.
Subclass:
16
Having adjustable or angular arch wire guide:
This subclass is indented under subclass 8. Subject matter
wherein the bracket includes a wire engaging surface for
locating or orienting the arch wire or similar force
transmitting strand with respect to the tooth carrying the
bracket, and either (a) the surface is adjustably carried by
the bracket whereby it may assume any of an plurality of
positions with respect to the bracket, or (b) the wire
engaging surface forms an acute angle with the plane of
occlusion whereby the arch wire or strand applies a torque to
the tooth carrying the bracket.
Subclass:
17
Having arch wire enclosing guide (e.g., buccal tube):
This subclass is indented under subclass 8. Subject matter
wherein the bracket includes an elongated member having a
passage therein through which the arch wire is placed.
Subclass:
18
Means to transmit or apply force to tooth:
This subclass is indented under subclass 2. Subject matter
relating to either (a) a strandlike member adapted to be
secured to a bracket and placed under tension to apply force
to a tooth, or (b) a device adapted to engage two brackets or
teeth, or a bracket and arch wire, for creating a force
between a tooth and arch wire.
Subclass:
19
Acting between upper and lower teeth:
This subclass is indented under subclass 18. Subject matter
wherein the strandlike member or the force creating device is
connected to a tooth on the maxillary arch and to a tooth on
the mandibular arch to transmit or apply a force between the
two teeth.
Subclass:
20
Arch wire:
This subclass is indented under subclass 18. Subject matter
relating to a metallic strandlike member adapted to be
secured to a bracket and placed under tension to apply force
to a tooth.
Subclass:
21
Metallic spring:
This subclass is indented under subclass 18. Subject matter
comprising a device for creating a force between two teeth or
between a tooth and arch wire comprising a metallic element
of sufficient elastic property that it recovers its original
shape when released after being distorted.
SEE OR SEARCH CLASS:
267, Spring Devices, appropriate subclasses for springs in
general.
Subclass:
22
Arch wire attachment:
This subclass is indented under subclass 2. Subject matter
comprising a discrete element adapted to be secured to an
arch wire.
Subclass:
23
Band:
This subclass is indented under subclass 2. Subject matter
relating to an appliance element adapted to be positioned
around substantially the entire circumference of a tooth for
the purpose of securing a bracket thereto.
Subclass:
24
Method of positioning or aligning teeth:
This subclass is indented under subclass 2. Method including
a step for correcting a malocclusion.
Subclass:
25
APPARATUS:
This subclass is indented under the class definition. Device
or subcombination thereof for facilitating the replacement,
treatment, or testing of either natural or artificial teeth.
(1) Note. The above apparatus do not remain in the patient's
mouth after treatment.
(2) Note. This and indented subclasses are intended to
collect patents to devices for performing specific dental
steps (i.e., those performed by a dentist). Devices of a more
general nature (e.g., molds, forming dies, etc.) which are
used by technicians are classified elsewhere unless
specifically provided for in this class (see search notes
below).
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for apparatus peculiar to the treatment or replacement of
the teeth of animals.
3 for a tool for manipulating an orthodontic appliance.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, subclass 167.1
for toothbrushes.
24, Buckles, Buttons, Clasps, etc., subclasses 305+ for
combined fasteners, especially subclasses 326+ for dental
chair fasteners.
29, Metal Working, subclasses 33+ and 650 for manufacturing
apparatus which perform two or more diverse operations (as in
the manufacture of dental prostheses); and subclasses 700+
for assembling and disassembling apparatus.
30, Cutlery, appropriate subclasses for hand held cutting
implements in general. Class 433 will take cutting implements
which are disclosed solely for use by a dentist.
118, Coating Apparatus, subclasses 200+ for toothbrushes
provided with dentifrice supply means.
128, Surgery, subclasses 3+ for specula.
132, Toilet, subclasses 321+ for toothpicks and dental
floss, and subclasses 308+ for a toilet kit including a
toothbrush.
248, Supports, subclasses 637+ for machinery supports not
peculiar to or including dental treating apparatus.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 2 for shaping means utilizing an
anatomical body or portion thereof; and subclasses 175+ for
investment molding apparatus.
451, Abrading, for abrading of dentures in a manufacturing or
laboratory operation. Abrading or polishing natural teeth or
mutually abrading upper and lower dentures is provided for in
Class 433 (sole disclosure).
601, Surgery: Kinesitherapy, subclasses 136+ for gum
massagers and subclasses 154+ for water getting devices for
gums.
604, Surgery, subclasses 19+ for aspirating devices; and
subclasses 181+ for handheld injecting devices.
606, Surgery, subclasses 79+ for orthopedic cutting
instruments, subclass 116 for cutting means for marking
animals, subclass 132 for skin cutting dermatomes; subclass
137 for cutting means used in animal sterilization, subclass
163 for cutting means used in debeaking or dehorning animals
and subclasses 167+, for cutting instrument in general.
Subclass:
26
Tooth selection guide:
This subclass is indented under subclass 25. Apparatus
comprising a common holder for displaying a plurality of
artificial teeth for the purpose of choosing the proper
color, shape, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163 for an artificial tooth holder.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, subclass 63.5 for a
special container, package, or carrying case for a dental
implement, material or article.
Subclass:
27
Having condition sensor to transmit signal to regulate
indicating device or controller:
This subclass is indented under subclass 25. Device wherein
means are provided for detecting the random occurrence of a
predetermined event and releasing, terminating, or modifying
a flow of energy which in turn either produces a perceptible
manifestation of the event, or regulates a control means
(e.g., motor, valve, solenoid, etc.).
Subclass:
28
Switch or valve controlled by presence of device on support:
This subclass is indented under subclass 27. Apparatus
including a holder for storing an implement, and wherein
removal or replacement of the implement on the holder
activates or regulates the controller.
Subclass:
29
Having means to emit radiation or facilitate viewing of the
work:
This subclass is indented under subclass 25. Device including
(a) means to increase the lighting intensity at selected
areas, or (b) means to bend or reflect light waves to make
characteristics of the device or work more readily
discernable, or (c) means from which electromagnetic
radiation is directed at the work.
(1) Note. Mouth props, per se, are excluded.
SEE OR SEARCH THIS CLASS, SUBCLASS:
140 for mouth props.
SEE OR SEARCH CLASS:
128, Surgery, subclasses 3+ for specula; and subclass 23
for lamps.
250, Radiant Energy, appropriate subclass for X-ray sources,
detectors and related apparatus, or methods of using such
apparatus in dentistry for producing images of teeth.
362, Illumination, appropriate subclasses for lighting
systems in general, especially subclasses 572+ and 577 for
optic transmission fibers which modify light from a man-made
source.
385, Optical Waveguides, appropriate subclasses for optic
transmission fibers.
408, Cutting by Use of Rotating Axially Moving Tool, subclass
16 for drilling apparatus provided with means to facilitate
viewing of the work.
Subclass:
30
Mirror:
This subclass is indented under subclass 29. Apparatus
including a polished or smooth surface for forming an image
by reflection.
SEE OR SEARCH CLASS:
359, Optics: Systems (Including Communication) and Elements,
subclasses 838+ for mirrors in general, and dental mirrors
without structure peculiar to dental use.
600, Surgery, subclasses 185+, 246, and 247+ for surgical
mirrors, especially subclasses 246 and 247+ for oral
mirrors.
Subclass:
31
Combined with other device:
This subclass is indented under subclass 30. Apparatus
wherein the mirror is connected to a disparate dental
device.
Subclass:
32
Having heater or electrode:
This subclass is indented under subclass 25. Device provided
with either (a) means to raise the temperature of the device,
work or environment, or (b) a conductor for establishing
electrical contact with the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 215+ for methods of treating teeth by heat or
electricity.
SEE OR SEARCH CLASS:
128, Surgery, subclasses 362+ for other light, thermal, or
electrical application in surgery.
219, Electric Heating, appropriate subclasses for details of
electrical heating devices in general.
606, Surgery, subclasses 2+ for light, subclasses 27+ for
heat and subclasses 32+, for electrical applicators surgical
instruments.
Subclass:
33
Having support for patient or operator:
This subclass is indented under subclass 25. Apparatus
including means to support a patient or operator against the
force of gravity.
SEE OR SEARCH CLASS:
5, Beds, subclass 600 for invalid beds and surgical patient
supports.
297, Chairs and Seats, appropriate subclasses for dental
chairs, per se.
378, X-Ray or Gamma Ray Systems or Devices, subclasses 38+,
168+, and 190+ for tables or chairs for supporting persons
for X-ray diagnosis, and having means peculiar thereto.
Subclass:
34
Having static product shaping surface (e.g., mold):
This subclass is indented under subclass 25. Device
comprising static structure for confining a settable fluent
material that is allowed to contact said structure and harden
into a specific contour.
SEE OR SEARCH THIS CLASS, SUBCLASS:
71 for bite trays wherein an impression is obtained by
biting into a solid material.
SEE OR SEARCH CLASS:
249, Static Molds, subclass 54 for a mold for making a
dental prosthesis.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 16+ for a process of molding or
otherwise shaping a dental prosthesis.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 2 for shaping apparatus utilizing an
anatomical body or portion thereof as a shaping surface, and
particularly subclasses 175+ for investment molding apparatus
for dentures.
Subclass:
35
Having cooling means:
This subclass is indented under subclass 34. Apparatus
including means to carry heat away from the hardenable fluent
material.
SEE OR SEARCH CLASS:
249, Static Molds, subclasses 79+ for molds having cooling
passages.
Subclass:
36
Having settable material dispenser or fill opening:
This subclass is indented under subclass 34. Device including
either a supply means for the settable fluent material or an
orifice through which settable material is introduced into
the static structure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 80+ for an intra-oral dispenser, per se.
SEE OR SEARCH CLASS:
141, Fluent Material Handling, With Receiver or Receiver
Coacting Means, subclasses 311+ for filling means having a
coacting receiver, other than a molding apparatus.
249, Static Molds, subclass 105 for a mold having static
filling means in contact with the mold cavity.
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclasses 447+ for molding apparatus including
a shaping surface and means feeding fluent stock thereto, see
the collection to search notes thereunder.
Subclass:
37
Intra-oral:
This subclass is indented under subclass 34. Apparatus
wherein the static structure is placed in the mouth of a
patient to form a mold in conjunction with a surface inside
the patient's mouth.
Subclass:
38
Comprising frame and flexible bib:
This subclass is indented under subclass 37. Apparatus
wherein the surface of the static structure which supports or
contacts the settable fluent material comprises a thin strip
of pliant material supported in a relatively rigid
construction.
Subclass:
39
Deformable or flexible band (e.g., matrix):
This subclass is indented under subclass 37. Apparatus
comprising a thin strip of material adapted to be bent or
flexed to define a mold cavity in conjunction with a
surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
155 for matrix clamps.
226 for a method of filling a tooth.
Subclass:
40
Single tooth:
This subclass is indented under subclass 37. Apparatus
wherein the static structure forms a mold in conjunction with
the surface of one tooth only.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223 for a method of constructing a prosthetic crown
including the step of forming an impression of the natural
tooth stump.
Subclass:
41
Adjustable:
This subclass is indented under subclass 37. Apparatus
wherein means are provided to vary the position or
orientation of a first portion of the static structure
relative to a second portion to accommodate different
patients.
SEE OR SEARCH CLASS:
249, Static Molds, subclass 155 for adjustable molds for
forming different size or shaped product.
Subclass:
42
Upper section relative to lower section:
This subclass is indented under subclass 41. Apparatus
wherein the first and second relatively movable portions are
adapted to form maxillary and mandibular casts of the
patient's mouth.
Subclass:
43
Pivotally connected sections:
This subclass is indented under subclass 41. Apparatus
wherein the first and second portions are hingedly attached
to one another for swinging movement about an axis.
Subclass:
44
Having positioning means or gauge:
This subclass is indented under subclass 37. Apparatus
including a dimensional reference or other means to
facilitate exact placement of the static structure inside the
patient's mouth.
Subclass:
45
Having means to facilitate assembly or disassembly:
This subclass is indented under subclass 37. Device wherein
means are provided to facilitate the putting together or
taking apart of the various elements of the static
structure.
Subclass:
46
Detachable handle:
This subclass is indented under subclass 45. Apparatus
wherein the static structure is provided with a specific
portion by which a person may grasp the structure, and
wherein the portion is readily removable from the remainder
of the structure.
SEE OR SEARCH CLASS:
16, Miscellaneous Hardware, subclasses 110+ for handles,
per se.
Subclass:
47
Including release facilitating means:
This subclass is indented under subclass 37. Device wherein
the static structure includes means specifically provided to
assist in separating the hardened fluent material from either
the static structure or the mouth of the patient.
SEE OR SEARCH CLASS:
249, Static Molds, subclass 66.1 for a mold having means to
apply force to remove or release a product from a mold.
Subclass:
48
Mold material:
This subclass is indented under subclass 37. Apparatus
wherein the static structure is formed of a specified
composition.
Subclass:
49
Work support:
This subclass is indented under subclass 25. Apparatus
comprising means to sustain the weight of a workpiece and
which in turn is adapted to be supported on a surface
external to the patient.
(1) Note. Tool and equipment supports are excluded from this
subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 77+ for storage or nonuse supporting means for
dental apparatus.
163 for a hand-held work carrier.
SEE OR SEARCH CLASS:
269, Work Holders, appropriate subclasses for work holders
not specifically provided for in the various treatment
classes.
Subclass:
50
Including tool, marker, or coupling means therefor:
This subclass is indented under subclass 49. Apparatus
provided with either (a) an implement to contact and modify
the workpiece being supported, or (b) structure adapted to
cooperate with an implement or secure an implement to the
support.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 75+ for a tool guide carried by the operator or
the workpiece itself.
SEE OR SEARCH CLASS:
269, Work Holders, subclass 48, 87+, and 290+ for other than
dental work holders and which have a tool guide or coupling
means.
Subclass:
51
Abrading tool or cutter:
This subclass is indented under subclass 50. Apparatus
wherein the implement comprises a instrument which is rotated
or otherwise moved while in contact with the surface of a
workpiece to either (a) polish the surface or remove a
portion of the surface by reducing the surface to powder or
small fragments, or (b) penetrate the surface by a cutting
edge or point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125 for a hand-held motor driven grinder or polisher.
142 for a hand manipulatable grinder or polisher.
SEE OR SEARCH CLASS:
451, Abrading, subclasses 364+ for a work holder for an
abrading apparatus or process.
Subclass:
52
Including motor or power transmitting means:
This subclass is indented under subclass 49. Apparatus
provided with a prime mover or means to receive the output of
a prime mover.
SEE OR SEARCH CLASS:
451, Abrading, subclasses 114+ for abrading by mutual
moving contact between plural work pieces held respectively
by relatively moving work holders.
Subclass:
53
Including means to support plural workpieces for relative
movement:
This subclass is indented under subclass 49. Apparatus
comprising a common support having a first work carrying
means for supporting a first workpiece and a second work
carrying means for supporting a second work part, at least
one of said work carrying means being movable on said common
support toward or away from the other of said work carrying
means.
SEE OR SEARCH CLASS:
269, Work Holders, subclass 45 for similar work holders not
used in dentistry.
Subclass:
54
Articulator or attachment therefor:
This subclass is indented under subclass 53. Apparatus
wherein the first and second work carrying means are
specifically adapted to support maxillary and mandibular
dental casts, respectively, and wherein the relative movement
between the two work carrying means represents movement of
the temporo-mandibular joints, or subcombinations peculiar
thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
196 for a method of using an articulator for positioning or
aligning teeth.
Subclass:
55
Having visual indicator or recorder:
This subclass is indented under subclass 54. Apparatus
wherein the articulator includes a scale or other markings
which provide a visual reference to the position or movement
of the holder or a portion thereof.
Subclass:
56
Including gauge or means for removably mounting gauge on
support:
This subclass is indented under subclass 54. Apparatus
wherein the articulator includes either means providing a
dimensional or angular reference, or structure for removably
carrying such referencing means.
Subclass:
57
Including hinge having parts which cooperate in a manner
allowing relative movement:
This subclass is indented under subclass 54. Apparatus
wherein the relative movement between the first and second
work carrying means is governed by a joint which comprises a
fulcrum carried by one of said work carrying means and a
cooperating surface on the other of said work carrying means,
wherein the fulcrum pivots and translates relative to the
cooperating surface.
Subclass:
58
And resiliently biased:
This subclass is indented under subclass 57. Apparatus
including means to elastically urge the fulcrum against its
cooperating surface.
Subclass:
59
Including adjustable incisal guide:
This subclass is indented under subclass 54. Apparatus
comprising a surface associated with one of the work carrying
means which cooperates with a guide pin or analogous
structure associated with the other of the work carrying
means to cause lateral movement between the two work carrying
means as they approach one another, and wherein said surface
may be adjusted to assume a selected angle or position with
respect to a horizontal plane.
Subclass:
60
Including means to secure workpiece on articulator:
This subclass is indented under subclass 54. Apparatus
wherein at least one of the first and second work carrying
means includes structure for fastening a dental cast
thereto.
Subclass:
61
Having pivot and additional adjustment between workpiece
supporting means:
This subclass is indented under subclass 54. Apparatus
wherein the work carrying means are connected through a joint
which allows relative swinging movement about an axis through
the joint, and wherein the joint in turn is also movable
relative to one of the work carrying means.
Subclass:
62
Additional pivot:
This subclass is indented under subclass 61. Apparatus
wherein the joint is mounted for swinging movement relative
to one of the work carrying means about a second axis.
Subclass:
63
Rectilinear adjustment:
This subclass is indented under subclass 62. Apparatus
wherein the joint is also capable of adjustable movement in a
straight-line fashion relative to one of the work carrying
means.
Subclass:
64
Ball-and-socket:
This subclass is indented under subclass 62. Apparatus
wherein the joint comprises a spherical convex surface mated
with a concave surface to allow relative swinging movement of
the work carrying means in more than one plane.
Subclass:
65
Rectilinear adjustment only between supporting means and
pivot:
This subclass is indented under subclass 61. Apparatus
wherein the joint is mounted for rectilinear movement along a
second axis relative to one of said work carrying means.
Subclass:
66
Having lock or adjustable stop for pivoted work holder:
This subclass is indented under subclass 54. Apparatus
wherein the work carrying means are connected through a joint
which allows relative swinging movement between the two work
carrying means, and either (a) means are provided to
selectively allow or prevent relative swinging movement
between the two work carrying means, or (b) abutment means
are provided to limit the extent of relative movement of the
work carrying means about the joint, and wherein the abutment
means is movable to vary the relative positions of the work
carrying means.
SEE OR SEARCH CLASS:
403, Joints and Connections, subclasses 83+ for articulated
members lockable at fixed positions.
Subclass:
67
Workpiece supporting means between adjustable stop and
pivot:
This subclass is indented under subclass 66. Apparatus
wherein an adjustable abutment means is provided at a greater
radius from the joint than the work carrying means.
Subclass:
68
Having means to record or indicate jaw movement or position
or dental occlusion:
This subclass is indented under subclass 25. Apparatus
including means to provide a representation of the position
or movement of the mandible, or of the positions or alignment
of a patient's teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 37+ for dental impressions trays.
140 for jaw positioners.
Subclass:
69
Jaw movement:
This subclass is indented under subclass 68. Apparatus
comprising means to provide a representation of
maxillomandibular movement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
55 for an articulator provided with means to record relative
movement of the work (denture) carrying means.
SEE OR SEARCH CLASS:
346, Recorders, appropriate subclasses for apparatus and
methods in general for making records of the movement of
instruments.
Subclass:
70
By transfer of material to teeth:
This subclass is indented under subclass 68. Apparatus
comprising means carrying a marking material which is
transferred by contact to the teeth of a patient when the
patient bites the material carrying means.
Subclass:
71
By deformation of material:
This subclass is indented under subclass 68. Apparatus
comprising a relatively easily deformed material or a holder
therefor adapted to be contacted by the teeth of a patient to
provide a visual representation of the patient's bite.
Subclass:
72
Having gauge or guide:
This subclass is indented under subclass 25. Apparatus
including either (a) dimensional or angular reference, or (b)
a surface adapted to be contacted by another device (e.g., a
tool) to govern the movement of the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 for an impression tray provided with a gauge.
55 for an articulator provided with a gauge having indicia
thereon.
56 for an articulator having a gauge without indicia.
SEE OR SEARCH CLASS:
33, Geometrical Instruments, subclasses 511+ for anatomical
gauges; and subclasses 783+ for anatomical calipers.
Subclass:
73
Condylar referencing means (i.e., face bow):
This subclass is indented under subclass 72. Apparatus
comprising means specifically provided for transferring a
dimension measured with respect to the temporo-mandibular
joints.
SEE OR SEARCH THIS CLASS, SUBCLASS:
56 for an articulator provided with a face bow or means to
mount or engage a face bow.
Subclass:
74
Dowel pin or positioner therefor:
This subclass is indented under subclass 72. Apparatus
comprising either (a) an elongated member for attachment to
either an artificial tooth or base casting to ensure proper
positioning of the tooth on the base following removal
therefrom, or (b) a device for locating the member in the
proper position on the tooth or base prior to fixing the
member thereto.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 for dowel pin positioners having a support for the
casting.
Subclass:
75
Having tool, marker, or coupling or guiding means therefor:
This subclass is indented under subclass 72. Apparatus
including either (a) an implement to contact and modify a
workpiece, or (b) structure for cooperating with such an
implement or for securing such an implement to the
dimensional or angular reference means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 for similar devices which include a work supporting means
as well as tool, marker, or coupling means therefore.
SEE OR SEARCH CLASS:
408, Cutting by Use of Rotating Axially Moving Tool, subclass
241 for drill guides of general utility; and subclass 202
for a depth limiting member.
Subclass:
76
Parallel drilling:
This subclass is indented under subclass 75. Apparatus
wherein means are provided to guide a drill such that the
hole formed thereby will be parallel to an adjacent hole.
(1) Note. Included herein are dental drills having plural
parallel drilling bits.
SEE OR SEARCH CLASS:
408, Cutting by Use of Rotating Axially Moving Tool, subclass
46 for a paralleling drill of general utility; and subclass
241 for drill guides.
Subclass:
77
Having storage or nonuse supporting means (e.g., tray, rack,
cabinet, etc.):
This subclass is indented under subclass 25. Apparatus
comprising means for stowing or carrying dental equipment or
materials while they are not being used.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28 for equipment supports having means to automatically
activate a tool when it is removed from the support.
29 for dental stands equipped with illuminating means.
33 for a dental stand provided with a patient's or dentist's
chair.
subclasses 49+ for work supports.
subclasses 108+ for a dental stand or bracket having means
for retaining a tool carrying arm in an adjusted or stored
position.
SEE OR SEARCH CLASS:
312, Supports: Cabinet Structure, appropriate subclasses for
cabinet structure, per se, especially subclass 209 for
dental equipment cabinets. Class 433 takes cabinets provided
with specific dental equipment.
Subclass:
78
Including hose retractor:
This subclass is indented under subclass 77. Apparatus
comprising means for moving a length of flexible conduit from
an extended operable position to a stowed position.
SEE OR SEARCH CLASS:
242, Winding, Tensioning, or Guiding, subclasses 370+ for a
reeling device, particularly subclasses 371+ for a spring
powered reeling device.
Subclass:
79
Movably mounted tray or holder:
This subclass is indented under subclass 77. Apparatus
including an equipment support which is externally attached
to a supporting structure by means which allows relative
movement between the support and its supporting structure.
SEE OR SEARCH CLASS:
108, Horizontally Supported Planar Surfaces, appropriate
subclasses for movably mounted trays without specific dental
structure (e.g., fluid conduits, controls, combined with
dental chair, etc.).
Subclass:
80
Having intra-oral dispensing means:
Apparatus under subclass provided with a discharge outlet
through which material passes from a supply into a patient's
mouth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28 for a syringe combined with a support and means for
actuating a valve when the syringe is removed from the
support.
36 for a dispenser claimed in combination with a mold.
SEE OR SEARCH CLASS:
118, Coating Apparatus, subclasses 200+ for toothbrushes
with dentifrice supplying means.
128, Surgery, subclass 66 for hydrants (i.e., water picks
and the like).
222, Dispensing, appropriate subclasses for dispensers in
general. See particularly the search notes in the class
definition for other classes having dispensers.
604, Surgery, subclasses 77+ for Intra-oral medicator; and
subclasses 181+ for hypodermic syringes.
Subclass:
81
Endodontic:
This subclass is indented under subclass 80. Apparatus
comprising means for dispensing material interiorly of a
tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
102 for an endodontic broach.
224 for endodontic methods.
Subclass:
82
Combined with or attachment for work contacting tool or
handpiece therefor:
This subclass is indented under subclass 80. Apparatus
wherein the discharge outlet is provided in structure with
either (a) includes a nondispensing means for contacting and
modifying the work, or a handle for removably carrying a work
contacting and modifying means or (b) is provided with means
to connect the structure to a work contacting and modifying
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 30+ for dental mirrors having air outlets
adjacent the mirror surface for removing debris therefrom.
100 for dental drills having means to circulate lubricant or
coolant through the tool.
SEE OR SEARCH CLASS:
401, Coating Implements With Material Supply, appropriate
subclasses for dentifrice dispensing tooth brushes.
408, Cutting by Use of Rotating Axially Moving Tool,
subclasses 66+ for drilling apparatus which dispense
coolant to the tool or work.
451, Abrading, subclass 488 for means to ventilate or cool
an abrading tool or workpiece.
Subclass:
83
Having means to compact dispensed material:
This subclass is indented under subclass 82. Apparatus
wherein the means for contacting and modifying the work
comprises a surface for compressing the dispensed material
into the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 118+ for motor driven pluggers.
151 for spring operated pluggers.
164 for hand manipulatable pluggers.
Subclass:
84
Power-driven tool having fluid control valve for dispensed
material:
This subclass is indented under subclass 82. Apparatus
wherein the dispensed material is liquid or gaseous and means
are provided to regulate the flow through the discharge
outlet.
SEE OR SEARCH THIS CLASS, SUBCLASS:
28 for a valve which is actuated by removing a dispenser
from its nonuse supporting means.
SEE OR SEARCH CLASS:
137, Fluid Handling, for condition responsive valves and
valves in fluid systems.
251, Valves and Valve Actuation, appropriate subclasses for
valve and actuator structure, per se.
Subclass:
85
On or adjacent handpiece or handle:
This subclass is indented under subclass 84. Apparatus
wherein an activator for the flow regulating means is located
on or immediately adjacent to a portion of the device that is
adapted to be gripped by the operator's hand while the device
is in use.
SEE OR SEARCH THIS CLASS, SUBCLASS:
100 for fluid motor regulating valves on dental handpieces.
Subclass:
86
Ultrasonic tool:
This subclass is indented under subclass 82. Apparatus
wherein the work contacting means is caused to vibrate by the
prime mover at a very high frequency that is above audibility
limit of the human ear.
SEE OR SEARCH THIS CLASS, SUBCLASS:
119 for an ultrasonic tool, per se.
SEE OR SEARCH CLASS:
601, Surgery: Kinesitherapy, subclasses 1+ for ultrasonic
devices employed in kinesitherapy.
Subclass:
87
Dispenser externally mounted on tool or handpiece:
This subclass is indented under subclass 82. Apparatus
wherein the structure having the discharge outlet therein
comprises a discrete device carried on the exterior of the
treating device.
Subclass:
88
Dispensed material discharged by fluid current:
This subclass is indented under subclass 80. Apparatus
including means to direct a flow of fluid into contact with
the material to be dispensed so that the fluid entrains or
impels the material to carry or force the same into the
patient's mouth.
SEE OR SEARCH CLASS:
222, Dispensing, subclasses 630+ for apparatus for
dispensing material by a fluid current.
406, Conveyors: Fluid Current, appropriate subclasses for
entrainment and transport of solid material by a fluid
current.
451, Abrading, subclasses 75+ for sandblasting apparatus.
Subclass:
89
Hand-held implement with material supply:
This subclass is indented under subclass 80. Apparatus which
is supported entirely by the hand of the operator while being
used and includes a reservoir for containing the supply of
material to be dispensed.
SEE OR SEARCH CLASS:
222, Dispensing, subclass 372 for a supply container and
pump.
604, Surgery, subclasses 77+ for intra-oral medicators.
Subclass:
90
Single charge device having plunger type ejector:
This subclass is indented under subclass 89. Apparatus
including a pistonlike member movable through either the
reservoir or an additional chamber supplied from the
reservoir to expel the material contained in said reservoir
or chamber through the discharge outlet.
SEE OR SEARCH CLASS:
222, Dispensing, subclasses 386+ for dispensers comprising
a container, discharge outlet and follower.
Subclass:
91
Having suction orifice:
This subclass is indented under subclass 25. Apparatus
including a nozzle at which a low pressure is created to draw
air or material through or around a nozzle.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, subclass 300.1
for devices which clean by suction.
604, Surgery, subclasses 131+ for surgical aspirators.
Subclass:
92
And suction pump or material separator:
This subclass is indented under subclass 91. Apparatus
including either (a) means for creating subatomospheric
pressure at the nozzle, or (b) means for recovering and
retaining the removed material from the air current.
Subclass:
93
And mouth prop, tongue guard depressor, or cheek spreader:
This subclass is indented under subclass 91. Apparatus
wherein the nozzle is adapted to remove material from the
mouth of a patient and means are provided to either (a) brace
the patient's mouth in an open position, (b) protect the
patient's tongue or retain the tongue at the bottom of the
mouth, or (c) hold the cheek away from adjacent teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
140 for a dental jaw, cheek, lip, or tongue positioner.
SEE OR SEARCH CLASS:
600, Surgery, subclasses 184+ for surgical specula.
Subclass:
94
And clamp or positioner:
This subclass is indented under subclass 91. Apparatus
including means for holding or locating the nozzle in a
desired position.
Subclass:
95
And control valve for suction:
This subclass is indented under subclass 91. Apparatus
including means for regulating the vacuum strength at the
nozzle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84 for intra-oral dispensers provided with a fluid control
valve.
subclasses 98+ for dental apparatus having valves for
actuating a fluid motor.
Subclass:
96
In flexible conduit or eduction tube:
This subclass is indented under subclass 91. Apparatus
wherein the nozzle comprises an aperture located in a readily
deformable length of conduit.
Subclass:
97
Having receptacle (e.g., cuspidor):
This subclass is indented under subclass 25. Apparatus
including a basin or other container for receiving material.
SEE OR SEARCH CLASS:
4, Baths, Closets, Sinks, and Spittoons, subclass 263 for a
dental cuspidor, per se.
Subclass:
98
Including activator or regulator for controller or drive:
This subclass is indented under subclass 25. Apparatus
wherein means are provided by which an energy flow or signal
is initiated or modified to activate or otherwise regulate a
motor or other controller (e.g., valve, solenoid, etc.).
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 27+ for a condition responsive activator.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, appropriate
subclasses for switch or actuating structure, per se.
327, Miscellaneous Active Electrical Nonlinear Devices,
Circuits, and Systems, particularly subclasses 518+ for
miscellaneous control circuits which can be used for
handpieces or dental stands.
Subclass:
99
In handpiece:
This subclass is indented under subclass 98. Apparatus
wherein an actuator for the means which initiates or modifies
an energy flow or signal is carried on a hand-held device
which includes either means to drive or to transmit power to
a tool releasably secured thereto.
Subclass:
100
Fluid control valve:
This subclass is indented under subclass 99. Apparatus
wherein the means for initiating or modifying an energy flow
or signal comprises means for regulating the flow of a fluid
which operates or drives a controller.
SEE OR SEARCH THIS CLASS, SUBCLASS:
85 for a handpiece provided with a valve for controlling a
dispensed fluid.
Subclass:
101
Foot operated:
This subclass is indented under subclass 98. Apparatus
wherein an actuator for the means which initiates or modifies
an energy flow or signal is located near the floor and
adapted to be actuated by the foot of an operator.
SEE OR SEARCH CLASS:
200, Electricity: Circuit Makers and Breakers, subclass 86.5
for foot operated electric switches.
251, Valves and Valve Actuation, subclass 295 for foot
operated valves, per se.
318, Electricity: Motive Power Systems, subclass 551 for
foot-operated motor controller systems having three or more
positions.
Subclass:
102
Broach:
This subclass is indented under subclass 25. Apparatus
comprising an elongated member having serrations or
projections on the periphery thereof and adapted to be pulled
and pushed inside of a natural tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
75 for a broach provided with a penetration gauge or stop.
81 for the combination of a broach and endodontic
dispenser.
224 for a method of using a broach.
Subclass:
103
Having motor or means to transmit motion from motor to tool
(e.g., "engine"):
This subclass is indented under subclass 25. Apparatus
including either (a) a prime mover for driving a work
contacting and modifying means, or (b) dynamic power
transmission means between a prime mover and a work
contacting and modifying means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
27 for a motor operated in response to a sensed condition.
52 for a motor driven work holder.
subclasses 82+ for a motor operated tool combined with a
dispenser.
subclasses 98+ for a motor driven apparatus wherein an
activator (i.e., switch or valve) is claimed.
Subclass:
104
Including lubricating or apparatus cooling means:
This subclass is indented under subclass 103. Apparatus
wherein means are provided either (a) to apply a substance
between moving parts of the apparatus which are in contact to
reduce the friction therebetween, or (b) to carry heat away
from the apparatus.
(1) Note. Apparatus which dispense the lubricating or
cooling liquid into the patient's mouth will be found in the
dispensing subclasses above.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 82+ for motor operated tools which dispense the
cooling or lubricating fluid into the patient's mouth.
SEE OR SEARCH CLASS:
384, Bearings, subclasses 313+ for cooling a bearing by a
lubricant and subclasses 317+ for cooling a bearing by means
other than lubricant.
408, Cutting by Use of Rotating Axially Moving Tool,
subclasses 66+ for cooling or drilling apparatus in
general.
451, Abrading, subclass 488 for abrading apparatus combined
with cooling means.
Subclass:
105
Including clutch or variable transmission:
This subclass is indented under subclass 103. Apparatus
including either (a) a selectively engageable drive between
the prime mover and tool, or (b) means to vary the ratio of
the speed of movement of the prime mover's working member to
the speed of movement of the tool.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 640+ for
gearing.
192, Clutches and Power-Stop Control, subclasses 30+ for a
clutch, per se.
408, Cutting by Use of Rotating Axially Moving Tool,
subclasses 124+ and 139 for drilling apparatus having
clutches or variable speed transmissions, especially subclass
133 for plural speed drives.
474, Endless Belt Power Transmission Systems or Components,
appropriate subclasses for variable speed transmission using
a belt drive.
Subclass:
106
Including braking means:
This subclass is indented under subclass 103. Apparatus
wherein means are provided to decelerate the motor, tool, or
transmission means.
SEE OR SEARCH CLASS:
188, Brakes, appropriate subclasses for braking means, per
se.
Subclass:
107
Including means to apply counter force to counteract tool
weight or movement:
This subclass is indented under subclass 103. Apparatus
including an elongated bracket for movably connecting a tool
or handpiece to a standard, wall or other support, and means
are provided to offset the moment or inertia of the tool at
the end of the bracket.
SEE OR SEARCH CLASS:
248, Supports, subclass 162.1 for counterbalanced stands;
and subclasses 280.11 and 292.11 for counterbalanced brackets
in general.
408, Cutting by Use of Rotating Axially Moving Tool, subclass
235 for means to counterbalance a drill or drill supporting
structure.
Subclass:
108
And means to retain standard, arm, or handpiece in adjusted
or stored position:
This subclass is indented under subclass 103. Device wherein
the prime mover or power transmission means is carried by
either an adjustable floor supported columnar structure, an
adjustable elongated bracket or a hand-held tool chuck, and
means are provided to releasably hold or support the columnar
structure, bracket, or chuck in a predetermined position.
SEE OR SEARCH CLASS:
248, Supports, subclass 127 for adjustable stands; and
subclasses 274.1+ for adjustable brackets.
Subclass:
109
Pivotally adjustable:
This subclass is indented under subclass 108. Apparatus
wherein the columnar structure, bracket, or chuck are
swingably attached to an adjacent supporting structure to
permit swinging movement to the supported or held position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79 for a swingably mounted tray or tool holder.
Subclass:
110
Endless belt transmission:
This subclass is indented under subclass 103. Apparatus
including a dynamic power transmission means which comprises
an endless flexible member to transmit rotary or oscillatory
motion from a prime mover to a tool.
SEE OR SEARCH CLASS:
408, Cutting by Use of Rotating Axially Moving Tool, subclass
128 for belt and pulley driven drilling apparatus.
474, Endless Belt Power Transmission Systems or Components,
appropriate subclasses for an endless belt power
transmission; and particularly subclasses 58+ for a system
wherein a power output pulley is selectively shiftable to
different power output locations relative to an input
pulley.
Subclass:
111
Having tensioning means:
This subclass is indented under subclass 110. Apparatus
including means to adjust the tension of the endless flexible
member.
SEE OR SEARCH CLASS:
474, Endless Belt Power Transmission Systems or Components,
particularly subclasses 101+ for a belt tensioner for an
endless belt transmission.
Subclass:
112
Flexible shaft transmission:
This subclass is indented under subclass 103. Apparatus
including a dynamic power transmitting means comprising an
elongated member which is readily deformable in a direction
perpendicular to its length.
SEE OR SEARCH CLASS:
408, Cutting by Use of Rotating Axially Moving Tool, subclass
127 for flexible shaft driven drilling apparatus.
464, Rotary Shafts, Gudgeons, Housings, and Flexible
Couplings for Rotary Shafts, appropriate subclasses for
flexible rotary shafts used in torque transmission.
Subclass:
113
Having treadle:
This subclass is indented under subclass 103. Apparatus
including a swiveling or lever device adapted to be depressed
by the foot and which operates the drive for a tool.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 512 and 561 for
treadle linkage systems, per se.
408, Cutting by Use of Rotating Axially Moving Tool, subclass
136 for treadle powered drilling apparatus.
451, Abrading, subclass 341 for treadle actuated abrading
apparatus.
Subclass:
114
Hand-held tool or handpiece:
This subclass is indented under subclass 103. Apparatus
comprising either (a) a hand-held device having a driven work
contacting and modifying means, or (b) a hand-held chuck for
removably holding a driven work contacting and modifying
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 29+ for a hand-held tool or handpiece provided
with means to facilitate viewing of the work.
subclasses 50+ for a tool combined with means to support
the work.
subclasses 75+ for a tool provided with a gauge or guide.
subclasses 82+ for a hand-held tool or handpiece provided
with a dispenser (which may dispense the motive fluid).
subclasses 99+ for a hand-held tool or handpiece provided
with an activator (e.g., switch or valve).
Subclass:
115
Having seal:
This subclass is indented under subclass 114. Apparatus
including a substance or member employed specifically to
block the passage of material into or out of the tool or
handpiece.
SEE OR SEARCH CLASS:
277, Seal for a Joint or Juncture, for a generic sealing
means or process.
384, Bearings, subclasses 130+ for bearings with a seal.
415, Rotary Kinetic Fluid Motors or Pumps, subclasses 110+
and 170.1 for seals employed in rotary fluid motors other
than Class 433 type.
416, Fluid Reaction Surfaces (i.e., Impellers), subclass 174
for a seal between an impeller or shaft and a static part.
Subclass:
116
Having cover or guard:
This subclass is indented under subclass 114. Apparatus
including means carried by the tool hand-held or handpiece
either to protect the tool or handpiece, or to protect the
patient or operator from contact with a tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 136+ for means to protect a tooth or the mouth
from an adjacent work area.
SEE OR SEARCH CLASS:
451, Abrading, subclasses 451+ for a cover or work guard
for an abrading apparatus.
Subclass:
117
Including shock absorbing or vibration dampening means:
This subclass is indented under subclass 114. Apparatus
wherein the handpiece or hand tool includes means to reduce
the transmission of vibration or sudden forces along the tool
or handpiece.
SEE OR SEARCH CLASS:
173, Tool Driving or Impacting, subclasses 210+ for
impacting tools provided with cushioning means; and subclass
162 for tool drive means in general provided with vibration
dampening means.
408, Cutting by Use of Rotating Axially Moving Tool, for
drilling apparatus in general wherein the tool carrier is
provided with vibration dampening means.
Subclass:
118
Having reciprocating, vibrating, or oscillating output:
This subclass is indented under subclass 114. Apparatus
wherein the prime mover or power transmission means causes a
work contacting surface of a tool driven thereby to move back
and forth along a straight-line or arcuate path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151 for spring operated pluggers.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, appropriate subclasses for
mechanical movements, per se (e.g., rotary motion to
reciprocating motion).
173, Tool Driving or Impacting, appropriate subclasses for
reciprocating tool drives in general.
601, Surgery: Kinesitherapy, subclasses 46+ for vibrators;
and subclasses 84+ for other kinesitherapeutic devices having
specific movement.
Subclass:
119
Ultrasonic:
This subclass is indented under subclass 118. Apparatus
wherein the tool is vibrated at a very high frequency that is
above the audibility limit of the human ear.
SEE OR SEARCH THIS CLASS, SUBCLASS:
86 for an ultrasonic tool combined with a dispenser.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclasses 311+
for ultrasonic transducers, per se.
601, Surgery: Kinesitherapy, subclasses 1+ for ultrasonic
kinesitherapeutic devices.
Subclass:
120
Fluid motor:
This subclass is indented under subclass 118. Apparatus
wherein the means to drive the tool comprises structure which
converts the energy of a working fluid into movement of a
working member to drive the tool.
SEE OR SEARCH CLASS:
91, Motors: Expansible Chamber Type, appropriate subclasses
for a fluid motor, per se.
601, Surgery: Kinesitherapy, subclasses 46+ for fluid motor
driven vibrations; and subclasses 88+, 96, and 105 for other
kinesitherapeutic devices driven by fluid motors.
Subclass:
121
Impact by sudden release of spring:
This subclass is indented under subclass 118. Apparatus
including a resilient member which alternately stores and
releases energy from the prime mover or power transmission to
drive the tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151 for a hand manipulatable impact delivering tool which
employs a spring which stores an energy input from the
operator.
SEE OR SEARCH CLASS:
173, Tool Driving or Impacting, subclasses 202+ for a
spring driven hammerhead adapted to drive a tool.
Subclass:
122
Having rotating cam or eccentric:
This subclass is indented under subclass 118. Apparatus
comprising power transmission means which includes a driven
member having a surface which is so arranged about an axis as
to cause a cooperating member to be reciprocated to drive the
tool.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclass 53, 54, and 55+
for mechanical movements of the rotary to or from
reciprocating or oscillating type which include a cam.
173, Tool Driving or Impacting, subclasses 122+ for a tool
driving hammer reciprocally driven through a linkage which
includes a cam or eccentric.
Subclass:
123
And adjustment for stroke, intensity, or position of tool:
This subclass is indented under subclass 122. Apparatus
including means whereby one of the following may be varied:
(a) the distance the tool travels during each reciprocation,
(b) the impact with which the tool strikes the work, or (c)
the orientation or attitude of the tool with respect to the
hand engaged portion of the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
105 for tools or handpieces provided with a clutch to
disengage the drive from a tool or chuck.
130 for a rotary hand tool or handpiece provided with an
adjustable head.
SEE OR SEARCH CLASS:
173, Tool Driving or Impacting, subclass 115 for a tool
driving hammer element wherein means are provided to
selectively vary the length of cyclic travel; and subclass
120 for a spring driven tool driving hammer element wherein
means are provided to adjust the spring force.
Subclass:
124
Angularly offset tool:
This subclass is indented under subclass 118. Apparatus
wherein the longitudinal axis of the handpiece or the handle
of the hand-held tool is angularly offset with respect to the
movement axis of the tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
133 for a handpiece for driving a rotary tool wherein the
axis of rotation of a tool held therein is angularly offset
with respect to the longitudinal axis of the handle.
Subclass:
125
Having abrading or polishing means:
This subclass is indented under subclass 114. Apparatus
including a driven work contacting or modifying means adapted
to either smooth a surface by friction or to reduce a surface
to powder or small fragments by a plurality of natural
cutting edges.
SEE OR SEARCH THIS CLASS, SUBCLASS:
142 for hand-held grinder or polisher that is not
power-driven.
SEE OR SEARCH CLASS:
451, Abrading, subclasses 344+ for a hand-held grinding or
polishing device.
Subclass:
126
Having means facilitating assembly or disassembly of tool or
handpiece:
This subclass is indented under subclass 114. Apparatus
wherein means are provided to facilitate the putting together
or taking apart of distinct elements of the apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
146 for a hand manipulatable implement provided with means
to facilitate assembly or disassembly of the implement.
Subclass:
127
Means to releasably grip tool:
This subclass is indented under subclass 126. Apparatus
including a chuck for releasably holding a work contacting
and modifying means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
147 for a hand manipulatable tool having a removable tool
element or bit.
SEE OR SEARCH CLASS:
279, Chucks or Sockets, appropriate subclasses for tool
chucks in general. See particularly the search notes under
the class definition.
408, Cutting by Use of Rotating Axially Moving Tool,
subclasses 239+ for drill chucks.
Subclass:
128
Comprising locking means extending into groove or recess:
This subclass is indented under subclass 127. Apparatus
wherein the chuck includes a movable member adapted to engage
an indentation formed in the work contacting and modifying
means to retain the work contacting and modifying means in
the chuck.
SEE OR SEARCH CLASS:
279, Chucks or Sockets, subclasses 76+ for nondental tool
chucks of similar structure.
Subclass:
129
Including axially movable collect to cam fingers:
This subclass is indented under subclass 127. Apparatus
wherein the means for releasably holding a working contacting
or modifying means comprises a plurality of gripping elements
adapted to grip the periphery of the work contacting and
modifying means by moving a member which surrounds said
gripping elements to urge them inwardly to grip the work
contacting and modifying means.
SEE OR SEARCH CLASS:
279, Chucks or Sockets, subclass 9.1 for nondental tool
chucks of similar structure.
Subclass:
130
Having adjustable head:
This subclass is indented under subclass 114. Apparatus
wherein a joint is provided between the handle and proximal
end of the hand held-tool or handpiece which allows the
longitudinal axis of the work contacting and modifying means
to assume any one of the plurality of selected positions with
respect to the longitudinal axis of the handle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
123 for reciprocating, vibrating, or oscillating hand tools
provided with adjustable heads.
Subclass:
131
Having motor:
This subclass is indented under subclass 114. Apparatus
wherein the hand-held tool or handpiece is provided with a
prime mover to drive the work contacting and modifying
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 98+ for a hand-held tool or handpiece having a
motor and wherein an activator (i.e., switch or valve) is
claimed.
SEE OR SEARCH CLASS:
310, Electrical Generator or Motor Structure, subclass 40
for miniature motors.
Subclass:
132
Rotary fluid turbine:
This subclass is indented under subclass 131. Apparatus
wherein the prime mover comprises a disc or shaft which is
rotated about an axis by a current of fluid directed against
a series of reaction surfaces formed or carried on the disc
or shaft.
SEE OR SEARCH CLASS:
415, Rotary Kinetic Fluid Motors or Pumps, appropriate
subclasses for rotary fluid turbine motors, per se. See
particularly subclass 904 for a tool drive turbine art
collection.
416, Fluid Reaction Surfaces (i.e., Impellers) appropriate
subclasses for turbine rotor structure.
Subclass:
133
Contra angled handpiece:
This subclass is indented under subclass 114. Apparatus
comprising an elongated handpiece having a longitudinal axis
angularly offset with respect to the longitudinal axis of the
tool.
SEE OR SEARCH THIS CLASS, SUBCLASS:
124 for a reciprocating, vibrating, or oscillating angularly
offset tool.
Subclass:
134
Arbor:
This subclass is indented under subclass 103. Apparatus
comprising a member having a first portion adapted to be
received in a motor driven chuck, and a second portion
adapted to releasably hold a tool bit.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 127+ for tool gripping features of dental
handpieces.
SEE OR SEARCH CLASS:
279, Chucks or Sockets, appropriate subclasses for an arbor
in general.
451, Abrading, subclasses 490+ for a grinding tool
support.
Subclass:
135
Screw actuated clamp for apertured tool bit:
This subclass is indented under subclass 134. Apparatus
wherein the second portion adapted to releasably hold a tool
bit includes helically ribbed means adapted to be inserted
through an opening in the tool bit and rotated to secure the
tool bit to the arbor.
Subclass:
136
Having absorption means or means to isolate tooth or mouth
from adjacent area (e.g., bib, dam, etc.):
This subclass is indented under subclass 25. Apparatus
including either (a) a piece of material adapted to be placed
inside the mouth to absorb fluids, or (b) means for covering
a tooth, mouth or other area of a patient to protect the same
against injury or debris, or (c) means to engage and retain
(a) or (b) in or adjacent the work area.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 46+ and 455 for guards and
protectors.
Subclass:
137
Bib:
This subclass is indented under subclass 136. Apparatus
comprising means for covering an area of the patient
externally of the mouth.
SEE OR SEARCH CLASS:
2, Apparel, subclasses 46+ for a garment protector.
Subclass:
138
And discrete oral fastening or positioning means:
This subclass is indented under subclass 136. Apparatus
including means readily separable from the absorption or
isolating means to removably attach or orient the absorption
or isolation means to the patient's mouth.
Subclass:
139
Tooth clamp:
This subclass is indented under subclass 138. Apparatus
wherein the attaching means is adapted to be fastened to a
tooth inside the patient's mouth.
(1) Note. Patents reciting a clamp and any structure which
recognizes the presence of an absorption or isolating device
have been placed as originals in this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 153+ for miscellaneous clamps used in
dentistry.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclasses 305+ for
combined fasteners.
Subclass:
140
Jaw, cheek, lip, or tongue positioner:
This subclass is indented under subclass 25. Apparatus
comprising means to engage and retain either the mandible
cheek, lip, or tongue, in a desired position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 29+ for mirror or means to increase the lighting
intensity in the vicinity of the work, excluding mouth props,
per se.
68 for an adjustable mouth prop provided with a gauge to
indicate jaw position.
93 for similar structure combined with a suction orifice.
subclasses 138+ for a dam clamp provided with means to
retain the jaw, tongue, etc., in a desired position.
SEE OR SEARCH CLASS:
600, Surgery, subclasses 238+ for surgical specula without
structure peculiar to dental use.
Subclass:
141
Hand manipulatable implement:
This subclass is indented under subclass 25. Apparatus which
is carried and actuated by the hand.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 3+ for orthodontic implements.
subclasses 30+ for dental mirrors, per se, and combined
with other implements.
subclasses 72+ for gauges and implements combined
therewith.
102 for endodontic broaches.
SEE OR SEARCH CLASS:
81, Tools, appropriate subclasses for hand tools of both
general purposes and specific application which are not
provided for elsewhere. Class 433 will take any hand tool
wherein the sole disclosure is for use by a dentist.
606, Surgery, subclasses 1+ for surgical instruments.
Subclass:
142
Having abrading or polishing means:
This subclass is indented under subclass 141. Apparatus
including a work contacting and modifying means adapted to
either smooth a surface by friction or to reduce a surface to
powder or small fragments by a plurality of natural cutting
edges.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125 for a motor driven abrading or polishing means.
SEE OR SEARCH CLASS:
132, Toilet, subclass 75.6 and 76.5+ for manicuring abrading
implements.
451, Abrading, subclasses 523+ and 557+ for a manually
manipulated abrading tool.
Subclass:
143
Scaler:
This subclass is indented under subclass 141. Apparatus
specifically adapted for scraping deposits from teeth.
Subclass:
144
Having cutter:
This subclass is indented under subclass 141. Apparatus
having a man made cutting edge or point.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for veterinary cutters.
SEE OR SEARCH CLASS:
30, Cutlery, appropriate subclasses for hand manipulatable
cutters.
606, Surgery, subclasses 167+ for surgical cutting
instruments.
Subclass:
145
Including force multiplier:
This subclass is indented under subclass 144. Apparatus
including structure (e.g., screw, lever, etc.) by which the
force input from the hand of the operator may be increased at
the cutter.
SEE OR SEARCH CLASS:
30, Cutlery, subclasses 175+ for nippers; and subclasses
194+ for shears.
Subclass:
146
Having means facilitating assembly or disassembly:
This subclass is indented under subclass 141. Apparatus
wherein means are provided to facilitate the putting together
or taking apart of two or more distinct portions of the
implement.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 126+ for motor operated hand-held tools provided
with means to facilitate assembly or disassembly of the
tool.
Subclass:
147
Removable tool element:
This subclass is indented under subclass 146. Apparatus
including a distinct work contacting and modifying portion
and means to facilitate the assembly and disassembly of said
portion and the remainder of the implement.
Subclass:
148
Separator:
This subclass is indented under subclass 141. Apparatus
comprising means to apply oppositely directed forces against
opposing faces of adjacent teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 2+ for an orthodontic appliance to be worn by
the patient over a period of time to permanently move one
tooth relative to another.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 239 for disassembly apparatus
for spreading parts apart or separating them from face to
face engagement; and subclasses 244+ for other disassembly
tools with force multiplying operators.
Subclass:
149
Comprising tooth contacting wedge or wedge actuator:
This subclass is indented under subclass 148. Apparatus
comprising a member having a tapering width and which is
forced in a directing parallel to the opposing faces of two
teeth to move the teeth.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 253 for assembly or disassembly
apparatus having a wedge actuator.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, subclass 104 which is the residual locus for wedges.
Subclass:
150
Impacting means:
This subclass is indented under subclass 141. Apparatus
including means to impart a blow to a workpiece.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 118+ for motor driven impacting devices.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 254+ for assembly or
disassembly tools with an impact operator; and subclasses
275+ for those having a surface adapted to receive a blow
from a hammer.
81, Tools, subclass 52.3 for impacted delivering tools.
Subclass:
151
By sudden release of spring:
This subclass is indented under subclass 150. Apparatus
including a resilient member which stores energy supplied by
the hand of an operator, which energy is subsequently
released to impart a blow to the work.
SEE OR SEARCH THIS CLASS, SUBCLASS:
121 for motor-driven tools which deliver an impact by sudden
release of a spring compressed by the motor.
Subclass:
152
Including work penetrating portion to secure tool to work:
This subclass is indented under subclass 141. Apparatus which
is attached to a workpiece by a workpiece piercing member.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 244+ for disassembly tools
having a force multiplier, especially subclasses 264 and 281
for those having a screw-threaded work engager.
Subclass:
153
Having relatively movable work engaging surfaces:
This subclass is indented under subclass 141. Apparatus
including a plurality members, each having a work contacting
face, and structure connecting the members which permits
relative displacement between the work contacting faces.
SEE OR SEARCH CLASS:
81, Tools, subclasses 300+ for tools in general having jaws
positioned by relatively moving handles and subclass 487 for
other hand-held tools having a clamp.
Subclass:
154
Three or more relatively movable coacting surfaces:
This subclass is indented under subclass 153. Apparatus
including three members, each having a work contacting face
and wherein the structure connecting the members permits each
of the work contacting faces to be displaced relative to the
work contacting faces.
(1) Note. As an example, tooth or pin extractors having two
clamping jaws for engaging a tooth or pin and a pivoted
fulcrum or other member for engaging an adjacent area whereby
a force is exerted on the clamping jaws, are found in this
subclass.
SEE OR SEARCH CLASS:
81, Tools, subclass 303 for pliers and the like having three
or more jaws.
Subclass:
155
Work accommodating slot or opening through surface (e.g.,
matrix clamp):
This subclass is indented under subclass 154. Apparatus
wherein at least one of the members has an aperture or slot
through which a portion of the work may pass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39 for matrix clamps wherein the matrix band is claimed.
Subclass:
156
Including contoured work shaping surface:
This subclass is indented under subclass 153. Apparatus
wherein one of the work contacting faces has a shape which is
imparted to a workpiece by displacing the faces relative to
each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 34+ for dental devices having a static product
shaping surface.
SEE OR SEARCH CLASS:
72, Metal Deforming, subclass 409.01 for contoured metal
shaping pliers.
81, Tools, subclass 424.5 for work conforming tool jaw faces
for gripping work.
Subclass:
157
Pivoted:
This subclass is indented under subclass 153. Apparatus
wherein the structure connecting the members defines a first
pivot axis about which the work contacting faces on the
elongated members are adapted to swing.
Subclass:
158
Having actuating screw:
This subclass is indented under subclass 157. Apparatus
including an elongated helically ribbed member which when
rotated causes the work contacting face to pivot about the
bearing surface.
SEE OR SEARCH CLASS:
81, Tools, subclasses 388+ and 395+ for tools having
screw-actuated pivoted jaws.
Subclass:
159
Having handles to pivot surfaces (e.g., pliers):
This subclass is indented under subclass 157. Apparatus
comprising two elongated members pivotally connected at
points intermediate their length, each having a handle at one
side of the pivot and the work contacting face on the
opposite side of the pivot.
SEE OR SEARCH THIS CLASS, SUBCLASS:
4 for orthodontic pliers.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 268 for pliers for assembling or
disassembling parts.
81, Tools, subclasses 300+ for pliers of general purpose or
specific use and not provided for elsewhere.
606, Surgery, subclasses 205+ for forceps.
Subclass:
160
Plural pivots:
This subclass is indented under subclass 159. Apparatus
wherein a second pivot is provided spaced from the first
pivot and which connects two elements of the apparatus for
relative swinging movement.
SEE OR SEARCH CLASS:
81, Tools, subclasses 350+, 367+, and 424 for pliers in
general provided with plural pivots.
Subclass:
161
Screw actuated:
This subclass is indented under subclass 153. Apparatus
including an elongated helically ribbed member that when
rotated moves the work contacting faces.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139 for screw actuated tooth clamps.
SEE OR SEARCH CLASS:
29, Metal Working, subclasses 256+ for screw-actuated
assembly or disassembly tools.
Subclass:
162
Resiliently biased:
This subclass is indented under subclass 153. Apparatus
wherein the work contacting faces are elastically urged to a
desired position after they are moved from said position.
SEE OR SEARCH CLASS:
81, Tools, subclass 427 for pliers having resiliently urged
handles.
294, Handling: Hand and Hoist-Line Implements, for tweezers
in general.
606, Surgery, subclasses 210+ for tweezers in general.
Subclass:
163
Work carrier:
This subclass is indented under subclass 141. Apparatus
including a surface which is provided to support dental work
or material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
26 for a tooth selection guide comprising a holder for one
or more tooth models.
153 for carriers having relatively movable surfaces to grip
the work.
SEE OR SEARCH CLASS:
294, Handling: Hand and Hoist-Line Implements, appropriate
subclasses for handheld article carriers and manipulators in
general.
Subclass:
164
Plugger:
This subclass is indented under subclass 141. Apparatus
including a surface adapted to be pressed against a filling
in a tooth to compact the filling material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
83 for pluggers with filling dispensers.
subclasses 118+ for motor operated pluggers.
150 for hand manipulatable pluggers having a spring or other
impact delivering or receiving means.
Subclass:
165
Tool bit:
This subclass is indented under subclass 25. Apparatus
comprising a work contacting and modifying element adapted to
be received in a chuck or socket whereby the element may be
driven or manipulated.
SEE OR SEARCH CLASS:
407, Cutters, for Shaping, appropriate subclasses for work
shaping tool in general (other than wood); see especially
subclasses 53+ for face or end mill cutters.
408, Cutting by Use of Rotating Axially Moving Tool,
subclasses 199+ for drill bits in general.
Subclass:
166
Abrading or polishing:
This subclass is indented under subclass 165. Apparatus
wherein the work contacting and modifying element is adapted
to either smooth a surface by friction or reduce a surface to
powder or small fragments by a plurality of natural cutting
edges.
SEE OR SEARCH CLASS:
451, Abrading, subclasses 526+ for a flexible member
abrading tool and subclasses 540+ for a rigid abrading tool.
Subclass:
167
PROSTHODONTICS:
This subclass is indented under the class definition. Subject
matter relating to artificial teeth.
(1) Note. Utilization of an existing tooth or portion
thereof for purpose other than fastening adjacent artificial
teeth is considered repair rather than replacement.
(2) Note. Methods for making dental prostheses are proper
for Class 433 if they include specific dental steps (e.g.,
impression taking, fitting the patient with the denture,
etc.). Generally, those process claims which recite only
manufacturing steps will be classified in the appropriate
manufacturing class (see search notes below). A claim to a
dental prosthesis, per se, is properly classified in this
class if significant structure is recited.
SEE OR SEARCH THIS CLASS, SUBCLASS:
25 for apparatus employed in the process of replacing
missing teeth with artificial teeth.
subclasses 215+ for a method or material for replacing a
portion of a natural tooth.
SEE OR SEARCH CLASS:
29, Metal Working, subclass 400.1 for processes of
mechanical manufacture including diverse manufacturing
steps.
72, Metal Deforming, appropriate subclasses for a method or
apparatus for die shaping a denture base or other
prosthodontic element.
106, Compositions: Coating or Plastic, subclass 35 for
plastic or coating compositions used in dental prostheses.
164, Metal Founding, appropriate subclasses for a method of
casting a prostodontic element.
205, Electrolysis: Processes, Compositions Used Therein, and
Methods of Preparing the Compositions, subclasses 67+ for
electroforming methods for production of dentures.
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 16+ for a process for forming a
denture or element thereof.
520, Synthetic Resins or Natural Rubbers, appropriate
subclasses, particularly Class 523, subclasses 105+ for
nonmedicated compositions containing a synthetic resin having
utility specifically intended to be for contact with animal
living tissue, especially subclasses 109 and 113-120 for
dental compositions or to processes of preparing said
compositions.
Subclass:
168.1
Denture liner or cushion:
This subclass is indented under subclass 167. Subject matter
relating to the provision of a soft layer or pad of material
on the mouth contacting surface of a denture.
SEE OR SEARCH THIS CLASS, SUBCLASS:
199.1 for laminated or other plural layer denture bases.
SEE OR SEARCH CLASS:
523, Synthetic Resins or Natural Rubbers, subclass 120 for a
dentures plate liner specified only in terms of a composition
of the type there provided for. (See Lines With Other Classes
under the main definition of Class 433 for the general
line.)
Subclass:
169
Stress breaker:
This subclass is indented under subclass 167. Subject matter
wherein a denture includes means to redirect or absorb forces
during mastication to protect the denture from damage.
Subclass:
170
Between tooth engaging clasp and denture:
This subclass is indented under subclass 169. Subject matter
including means to secure the denture in the mouth, which
comprises opposing surfaces which are elastically urged
against opposing exterior surfaces of an abutment tooth, and
wherein the means to redirect or absorb mastication forces
forms the connection between the denture and securing means.
Subclass:
171
Prefabricated denture:
This subclass is indented under subclass 167. Subject matter
relating to a standard denture which is modified to conform
to the individual patient.
Subclass:
172
Holding or positioning denture in mouth:
This subclass is indented under subclass 167. Subject matter
relating to locating or securing one or more artificial teeth
in the mouth.
(1) Note. Patents in this subclass must relate to the
connection between a denture and either a natural tooth or
some part of the patient's mouth. Patents relating to the
connection between a denture and an artificial tooth will be
found in subclasses below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
191 for a method or means for securing an artificial tooth
to a base.
219 for a method or material for attaching a crown, per se,
to a natural tooth.
Subclass:
173
By fastening to jawbone:
This subclass is indented under subclass 172. Subject matter
wherein the denture is secured directly to the jawbone of the
patient.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201.1 for subject matter relating to the construction or
composition of a dental implant.
Subclass:
174
By screw:
This subclass is indented under subclass 173. Subject matter
wherein the denture is secured to the jawbone by an elongated
helically ribbed member.
Subclass:
175
Shape of removed tooth root:
This subclass is indented under subclass 173. Subject matter
wherein the lower portion of the denture that is secured to
the jawbone is shaped to correspond to the configuration of
the root of a natural tooth which had previously occupied the
same position in the mouth.
Subclass:
176
By blade:
This subclass is indented under subclass 173. Subject matter
wherein the denture is secured to the jawbone by a flat
platelike member extending from the bottom of an artificial
tooth.
Subclass:
177
By resiliently biased means:
This subclass is indented under subclass 172. Subject matter
wherein denture is secured or located in the patient's mouth
by means which includes a member that must be deformed
elastically when applying the denture to the mouth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 169+ for a denture having resilient means to
absorb the forces of mastication.
Subclass:
178
Tooth engaging clasp:
This subclass is indented under subclass 177. Subject matter
wherein the locating or securing means includes opposing
surfaces which are elastically urged against opposing
exterior surfaces of a natural or artificial tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139 for a tooth clamp for holding a dam or absorption roll
in place.
170 for a resilient tooth engaging clasp connected to a
denture by a stress breaker.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclasses 530+ for
resiliently biased clasps.
Subclass:
179
Acting between upper and lower denture:
This subclass is indented under subclass 177. Subject matter
wherein the elastically deformable means from a connection
between an upper denture and a lower denture to bias them
away from each other.
Subclass:
180
By cement or adhesive:
This subclass is indented under subclass 172. Subject matter
wherein a denture is secured in the patient's mouth by a
settable fluent material or other binding substance.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 226+ for methods of treating or restoring
natural teeth by filling or cementing.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, subclass 35 for
dental filling or cement compositions devoid of a synthetic
resin.
520, Synthetic Resins or Natural Rubbers, especially Class
523, subclasses 116+ for a composition containing a
synthetic resin used as a cement or a filling; and subclass
120 for a composition to be used as a denture plate,
adhesive, denture plate liner, or a denture plate cushion.
Subclass:
181
Including mating connectors on denture and abutment tooth:
This subclass is indented under subclass 180. Subject matter
wherein the denture is secured to a natural tooth by a
settable fluent material and the denture and the natural
tooth are provided with respective elements which
cooperatively engage each other to supplement or reinforce
the settable material bond.
SEE OR SEARCH THIS CLASS, SUBCLASS:
191 for connectors for securing artificial teeth together.
Subclass:
182
And additional member for securing connectors together:
This subclass is indented under subclass 181. Subject matter
wherein a third discrete element is provided for securing
together the respective elements on the denture and natural
tooth.
Subclass:
183
Including crown cemented to existing tooth:
This subclass is indented under subclass 180. Subject matter
wherein the denture has attached thereto a simulation of the
exposed portion of a tooth, and the denture is secured in the
mouth of fixing the simulation to the base of an existing
natural tooth using a settable adhesive material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
218 for crown construction or attachment to a natural
tooth.
Subclass:
184
By suction:
This subclass is indented under subclass 172. Subject matter
wherein the denture is provided with means engaging a natural
surface inside the mouth to form a chamber therewith, which
chamber is placed under subatmospheric pressure to secure the
denture in the mouth.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclasses 305+ for
vacuum-type fasteners.
Subclass:
185
Including valve or air passageway leading from suction area:
This subclass is indented under subclass 184. Subject matter
wherein means are provided to selectively establish
communication between the suction chamber and the
environment.
Subclass:
186
Cup or disc:
This subclass is indented under subclass 184. Subject matter
wherein the means which engages a natural surface inside the
mouth comprises a concave or flat, substantially rounded
pliant member carried by but distinct from the base of the
denture.
Subclass:
187
Plural cups or discs:
This subclass is indented under subclass 186. Subject matter
wherein a plurality of rounded pliant members are provided on
the denture.
Subclass:
188
Suction area comprises recess or cavity formed in denture
base:
This subclass is indented under subclass 184. Subject matter
wherein the chamber is formed by a natural surface inside the
mouth and an indentation formed in the denture base.
Subclass:
189
By magnetic material:
This subclass is indented under subclass 172. Subject matter
wherein a denture is secured in the mouth of the patient by
magnetic attraction between material carried by the denture
and material inside the mouth.
SEE OR SEARCH CLASS:
24, Buckles, Buttons, Clasps, etc., subclass 304 for
magnetic fasteners.
Subclass:
190
Connecting right and left segments of partial denture:
This subclass is indented under subclass 167. Subject matter
relating to a connector for joining spaced bilateral parts of
a maxillary or mandibular removable partial denture.
Subclass:
191
Attaching artificial tooth to base or adjacent artificial
tooth:
This subclass is indented under subclass 167. Subject matter
relating to the connection between an artificial tooth and an
intra-oral common support for a plurality of teeth, or
between two adjacent artificial teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
206 for subject matter relating to the connection between a
tooth facing and backing wherein the backing may be connected
to an adjacent backing to form a bridge.
Subclass:
192
By cavity in tooth for base material:
This subclass is indented under subclass 191. Subject matter
wherein an artificial tooth having a hole or other
indentation in surface is united to a common support for a
plurality of such teeth by causing a portion of the support
material to flow into the indentation and then harden.
Subclass:
193
Connected to base by discrete connecting member:
This subclass is indented under subclass 191. Subject matter
wherein an individually distinct device forms the connection
between an artificial tooth and a common support for a
plurality of such teeth.
(1) Note. A metallic pin embedded in a porcelain facing and
attached to the base is considered to be "individually
distinct" as defined above. However, for the pin-to-facing
connection, per se, see the search note below to subclasses
206+.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 206+ for a metallic attachment to an artificial
tooth, which may be a tooth to base connecting member (e.g.,
"connecting pin").
Subclass:
194
And additional discrete element for securing connecting
member to tooth:
This subclass is indented under subclass 193. Subject matter
wherein a second device which is individually distinct from
the tooth, base, and connecting member forms the connection
between the tooth and the connecting member.
Subclass:
195
Embedded in base material:
This subclass is indented under subclass 193. Subject matter
wherein the individually distinct device which forms the
connection between an artificial tooth and support is fixed
to the material of the support by either forming the support
material about the connecting device or by driving the
connecting device into the support material.
Subclass:
196
Orienting or positioning teeth:
This subclass is indented under subclass 167. Subject matter
relating to the determination of the precise location and
attitude of an artificial tooth with respect to another
artificial or natural tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 53+ for means to support and position plural
workpieces relative to each other.
subclasses 54+ for articulators.
subclasses 68+ for means to record or indicate dental
occlusion.
Subclass:
197
Cutting edge shape or arrangement:
This subclass is indented under subclass 167. Subject matter
relating to the profile or relative position or configuration
of a masticating edge or surface of an artificial tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202.1 for other subject matter relating to artificial tooth
shape or composition.
Subclass:
198
Metallic cutting edge:
This subclass is indented under subclass 197. Subject matter
wherein the masticating edge or surface is formed from
metal.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 206+ for a metallic tooth, tooth portion, or
attachment wherein the specific cutting edge shape is not
recited.
Subclass:
199.1
Denture base construction:
This subclass is indented under subclass 167. Subject matter
relating to the particular structure of a intraoral common
support for a plurality of artificial teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
208 for a metallic backing for an artificial tooth, a
plurality of which may be soldered together to form a base.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, subclass 35 for
dental plastic or coating compositions wherein no significant
denture structure is recited in the claims (i.e., the denture
is only nominally recited).
520, Synthetic Resins or Natural Rubbers, particularly Class
523, subclasses 115+ for a composition containing a
synthetic resin for use as a tooth or bone replacement,
restorative, or implant or to processes or preparing said
composition. (See Prostheses Or Appliances under the main
definition of Class 433 for the line.)
Subclass:
200.1
Metallic:
This subclass is indented under subclass 199.1. Subject
matter wherein the common support is formed of metal.
SEE OR SEARCH CLASS:
72, Metal Deforming, appropriate subclasses for method or
apparatus for swaging dental plates.
420, Alloys or Metallic Compositions, for alloys or metallic
compositions.
Subclass:
201.1
Dental implant construction:
This subclass is indented under subclass 167. Subject matter
relating to either the structure or a process of making a
dental prosthesis which is adapted to be fixed to the
jawbone.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 173+ for a method or structure for fastening an
implant to the jawbone.
SEE OR SEARCH CLASS:
520, Synthetic Resins or Natural Rubbers, particularly Class
523, subclasses 115+ for a composition containing a
synthetic resin suitable for use as a tooth or bone
replacement, restorative, or implant, or to processes of
preparing said composition. (See Prostheses Or Appliances of
the main definition of Class 433.)
Subclass:
202.1
Tooth construction:
This subclass is indented under subclass 167. Subject matter
relating to either the structure of or a process of adapted
to be fixed to a base or an adjacent natural or artificial
tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 218+ for construction or composition of a
prosthetic crown.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, subclass 35 for
dental plastic or coating composition wherein no significant
structure is recited (i.e., a tooth is only nominally
recited).
520, Synthetic Resins or Natural Rubbers, particularly Class
523, subclasses 115+ for a composition containing a
synthetic resin for use as a tooth or bone replacement,
restorative, or implant or to processes of preparing said
composition. (See Prostheses Or Appliances of the main
definition Class 433.)
Subclass:
203.1
Indicia, tinting or shading:
This subclass is indented under subclass 202.1. Subject
matter relating to either (1) the provision of markings on
the surface of the artificial tooth by which is may be
identified, or (2) the hue or relative lightness of an
artificial tooth to tooth portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
26 for a tooth shade or hue selection guide.
199.1 for methods and compositions for obtaining desired
tinting or shading of denture bases.
SEE OR SEARCH CLASS:
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclass 20 for shaping or treating a tooth and
providing a color or tone differential across the member.
Class 433 provides for patents claiming the tooth itself.
Subclass:
204
Having means facilitating replacement of tooth portion:
This subclass is indented under subclass 202.1. Subject
matter wherein the artificial tooth comprises two discrete
portions, the connection between the portions being of such a
nature to permit one portion to be readily removed from the
remaining portion for repair or replacement.
(1) Note. The two "tooth portions" may comprise a porcelain
facing and metallic backing.
Subclass:
205
Having plural piece backing or discrete connecting means for
adjacent tooth portions:
This subclass is indented under subclass 202.1. Subject
matter wherein the artificial tooth comprises either (a) a
tooth facing and a plurality of adjacent plate sections
attached to the facing, or (b) a plurality of discrete tooth
portions mechanically fastened together by means individually
distinct from either tooth portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 193+ for a discrete connecting means between an
artificial tooth and a base.
211 for a discrete connecting pin embedded in a tooth for
attaching the tooth to a base or backing.
Subclass:
206
Metallic tooth, tooth portion, or attachment:
This subclass is indented under subclass 202.1. Subject
matter wherein the artificial tooth is formed of metal or has
fixed thereto a metallic device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
198 for a tooth having a metallic cutting edge.
Subclass:
207
Alloy:
This subclass is indented under subclass 206. Subject matter
wherein the metal is a homogeneous mixture of two or more
different base metals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
200 for denture bases formed from particular alloys.
SEE OR SEARCH CLASS:
420, Alloys or Metallic Compositions, subclasses 526+ for
amalgams, per se, useful in making and filling teeth.
Subclass:
208
Metallic backing:
This subclass is indented under subclass 206. Subject matter
relating to a plate or other covering formed of metal and
adapted to be secured to the inside surface of an artificial
tooth facing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 191+ for an artificial tooth backing having
specific means for connecting or facilitating the connection
to an adjacent backing or base.
205 for a tooth facing connected to a metallic backing by a
discrete connecting means.
Subclass:
209
Having dovetail, "t", pinhead or bulbous protrusion extending
in congruent recess in facing:
This subclass is indented under subclass 208. Subject matter
wherein the backing is provided with a protruding portion
provided with an enlargement at its distal end having a cross
sectional shape of a dovetail, "T", pinhead, or bulb, the
enlargement being placed in a correspondingly shaped recess
in the tooth facing to unite the tooth facing and backing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
181 for similarly shaped protrusions carried by dentures to
secure the denture in the mouth.
SEE OR SEARCH CLASS:
403, Joints and Connections, subclass 381 for corresponding
connections between members other than teeth.
Subclass:
210
Having pin extending into facing:
This subclass is indented under subclass 208. Subject matter
wherein the backing is provided with a protruding portion
adapted to be inserted into the tooth facing, and wherein the
protruding portion is substantially elongated in a direction
away from the backing relative to any lateral dimension of
the portion.
Subclass:
211
Connecting pin:
This subclass is indented under subclass 206. Subject matter
wherein the artificial tooth has fixed thereto a metallic pin
adapted to secure the tooth to a base or backing.
(1) Note. This subclass contains subject matter relating to
tooth facing to pin connections and connecting pin structure,
per se.
SEE OR SEARCH THIS CLASS, SUBCLASS:
195 for patents showing or claiming the pin to base
connection.
Subclass:
212.1
Nonmetallic composite:
This subclass is indented under subclass 202.1. Subject
matter wherein the artificial tooth comprises two distinct
portions, each formed of a different nonmetallic material.
(1) Note. See Prostheses Or Appliances in the main
definition for the line with Chemical Composition Classes.
Subclass:
213
Preliminary casting, model, or trial denture:
This subclass is indented under subclass 167. Subject matter
relating to the formation or use of a positive likeness of
part of the oral cavity for the purpose of constructing a
finished dental prosthesis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 34+ for molds.
subclasses 49+ for work supports for measuring and working
with models, especially subclasses 54+ for articulators.
74 for dowel pins or positioners therefor (nonwork
supporting type).
144 for model trimmers.
SEE OR SEARCH CLASS:
264, Plastic and Nonmetallic Article Shaping or Treating:
Processes, subclasses 16+ for processes by which dentures
or teeth are formed which do not include specific dental
steps (e.g., impression taking, articulation, try-in, etc.).
Subclass:
214
Impression taking or bite determination:
This subclass is indented under subclass 167. Subject matter
relating to the formation or use of either (a) an imprint or
negative likeness of a part of the dental cavity, or (b) a
visual record indicating the occlusal relationship of a
patient's teeth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 37+ for impression trays.
subclasses 68+ for apparatus employed in determining a
patient's bite.
SEE OR SEARCH CLASS:
520, Synthetic Resins or Natural Rubbers, particularly Class
523, subclass 109 for a composition containing a synthetic
resin wherein said composition is useful in taking
impressions of the mouth or to processes of preparing said
composition.
Subclass:
215
METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR
REMOVING NATURAL TEETH:
This subclass is indented under the class definition. Subject
matter comprising either (a) a step of removing, repairing,
testing, or prophylactically treating a natural tooth, or (b)
a device which is employed in the restoration or treatment of
a natural tooth and which remains in the patient's mouth.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, subclass 35 for
coatings or plastic compositions specialized for dental use.
424, Drug, Bio-Affecting and Body Treating Compositions,
appropriate subclasses for treating compositions, per se, and
methods involving no more than the application of a Class 424
composition.
Subclass:
216
Cleaning:
This subclass is indented under subclass 215. Subject matter
including a step or material for removing foreign matter from
the surface of a tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
subclasses 25+ for apparatus for cleaning teeth.
subclasses 80+ for apparatus which dispense a cleaning or
rinsing material.
119 for ultrasonic cleaners.
125 for power operated abrading or polishing tools.
142 for hand manipulatable abrading or polishing tools.
143 for scalers.
166 for abrading or polishing tool bits.
SEE OR SEARCH CLASS:
15, Brushing, Scrubbing, and General Cleaning, subclass 167.1
for tooth brushes.
Subclass:
217.1
By lining or coating:
This subclass is indented under subclass 215. Subject matter
relating to either (1) a device or material applied to a
natural tooth to form an intermediate layer between the tooth
and a filling, crown, etc., to be applied to the tooth, or
(2) any treating or protective material that is applied to
the teeth to form a film thereon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
80 for apparatus for dispensing and applying coatings to the
teeth.
228.1 for a method which includes the step of applying a
restorative composition or cement to fill a tooth or cover
its face (bonding).
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, subclass 35 for a
protective coating composition, per se, adapted to be applied
to a tooth to form a structural barrier thereon.
424, Drug, Bio-Affecting and Body Treating Compositions,
appropriate subclasses for treating compositions applied to
natural teeth.
Subclass:
218
Crown:
This subclass is indented under subclass 215. Subject matter
relating to a simulation of the exposed portion of a natural
tooth adapted to be attached to and carried by the remainder
of the natural tooth.
(1) Note. Crowns having artificial teeth fixed thereto which
are not carried on portions of natural teeth are considered
to be prosthodontic devices and are excluded from this
subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for veterinary crown slitters.
40 for a device for taking an impression of a prepared tooth
prior to forming a prosthetic crown to be fixed upon the
tooth.
145 for hand manipulatable crown slitters.
202.1 for artificial tooth construction or composition.
Subclass:
219
Attachment to natural tooth or adjacent crown:
This subclass is indented under subclass 218. Subject matter
comprising a step or means for securing a prosthetic crown to
a natural tooth or to a prosthesis carried on an adjacent
natural tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
183 for attachment of a crown to an abutment tooth wherein
the crown serves as fastening means for an adjacent bridge.
Subclass:
220
By post:
This subclass is indented under subclass 219. Subject matter
wherein the crown is secured or positioned on the natural
tooth by an elongated member extending vertically into both
the crown and the natural tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
211 for method or means for securing a connecting pin to an
artificial tooth facing, the connecting pin adapted to be
used to fasten the tooth to a backing or plate.
Subclass:
221
Having surface grooves or ridges:
This subclass is indented under subclass 220. Subject matter
wherein the periphery of the elongated member is formed with
one or more elongated crests or flutes.
(1) Note. Threaded posts are included in this subclass.
Subclass:
222.1
Composite:
This subclass is indented under subclass 218. Subject matter
wherein the crown includes two distinct portions, each formed
of a different material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
198 for artificial teeth having a metallic occlusal
surface.
subclasses 208+ for artificial teeth having a metallic
portion.
212.1 for a nonmetallic tooth composed of a plurality of
distinct sections each formed of a different material.
Subclass:
223
Method of fabricating:
This subclass is indented under subclass 218. Process
including a step in the formation of the crown.
(1) Note. Methods for fabricating dental crowns are
classified in Class 433 only if they include specific dental
steps (e.g., taking an impression of the prepared tooth,
fitting the crown on the tooth, etc.). Process claims
reciting only manufacturing or forming steps should be
classified in the appropriate manufacturing or treatment
class.
Subclass:
224
Endodontic:
This subclass is indented under subclass 215. Subject matter
relating to treating the pulp of a natural tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
75 for an endodontic broach having a penetration gauge.
81 for endodontic dispensers.
102 for broaches.
Subclass:
225
Anchor pin:
This subclass is indented under subclass 215. Subject matter
relating to the use of an elongated member which is fixed to
a tooth at an area where the tooth is to be filled to secure
the filling to the tooth.
Subclass:
226
By filling, bonding or cementing:
This subclass is indented under subclass 215. Subject matter
relating to repair of a tooth by either (a) applying and
shaping material on the crown portion of a tooth, or (b)
employing a hardenable fluent material to bond a dental
restoration to a natural tooth.
SEE OR SEARCH THIS CLASS, SUBCLASS:
39 for a dental matrix.
83 for a combined plugger and filling material dispenser.
subclasses 118+ for powered pluggers.
164 for hand manipulatable pluggers.
subclasses 180+ for fixing a bridge or other prosthesis to
an inlay or filling in the surface of a natural tooth.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic, appropriate subclasses
for patents claiming a dental cement by composition.
Subclass:
227
Foil:
This subclass is indented under subclass 226. Subject matter
wherein the material applied to the tooth comprises one or
more thin sheets of metal.
Subclass:
228.1
Composition:
This subclass is indented under subclass 226. Subject matter
relating to a specific material applied to the tooth.
SEE OR SEARCH CLASS:
106, Compositions: Coating or plastic, subclass 35 for
dental cements, per se, and see Prostheses Or Appliances in
the main definition of Class 433 for the line.
420, Alloys or Metallic Compositions, subclasses 526+ for
an amalgam, per se, and see Prostheses Or Appliances in the
main definition for Class 433 for the line.
520, Synthetic Resins or Natural Rubbers, particularly Class
523, subclasses 116+ for a composition containing a
synthetic resin used as a cement or filling or to processes
of preparing said composition. (See Prostheses Or Appliances
in the main definition of Class 433.)
Subclass:
229
MISCELLANEOUS:
This subclass is indented under the class definition. Subject
matter which is not provided for under any of the preceding
subclass.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000