Class 196: MINERAL OILS: APPARATUS ( Manual of U.S. Patent Classification )

U.S. PATENT AND TRADEMARK OFFICE
Information Products Division

[Manual of Classification, Class Listing]

Manual of U.S. Patent Classification
as of June 30, 2000

Class
196
MINERAL OILS: APPARATUS

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Subclass		Title
ClassTitle		===> MINERAL OILS: APPARATUS

14.5		DEWAXING
14.52		SOLVENT EXTRACTION
46		REFINING
46.1		. With filtration
98		COMBINED VAPORIZING AND CONDENSING
99		. Condensate returned to vaporizer
100		. . Columns
102		. Condenser or collector in vaporizer
103		. Heads
104		VAPORIZING
105		. Systems
106		. . Series stills
107		. Tube and drum
108		. . Cyclic circulation
109		. . . Drum above tube
110		. Tubular
111		. With partitions
112		. Rotary
114		. Vacuum
115		. Special shapes
116		. Furnaces and flues
117		. . Internal flues
118		. Liquid baths
119		. Jackets
120		. Special means for heating
121		. . Electric
122		. Carbon removers
123		. Circulators or agitators
124		. . Mechanical
125		. . Baffles
126		. . Fluid injectors
127		. Fluid injectors
128		. Films or sprays
129		. Depending legs or spur tubes
130		. . Bottoms
131		. . Unheated
132		. Automatic control
133		. Special features of construction
134		. Heat recovery from vapor or residuum
135		. Feeders
136		. Vapor outlets
137		. Attachments
138		CONDENSING
139		. Dephlegmators or fractionating columns
140		. Contact with cooling fluid
141		. Automatically controlled temperature
155		MISCELLANEOUS

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Last Modified: 6 October 2000

Manual of U.S. Patent Classification as of June 30, 2000

Class 196 MINERAL OILS: APPARATUS

Manual of U.S. Patent Classification
as of June 30, 2000

Class
196
MINERAL OILS: APPARATUS