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Class Information
Number: 4/209R
Name: Baths, closets, sinks, and spittoons > Ventilation
Description:










Sub-classes under this class:

Class Number Class Name Patents
4/216 Bowl structure or vent valve 87
4/213 Electric-motor pump 251
4/211 House plumbing 52
4/210 Railway car 3
4/218 Roof outlet 27
4/217 Seat structure 98
4/219 Sewer 17
4/215 Water-jet pump 7
4/214 Water-motor pump 10
4/209FF With fluid filter 16


Patents under this class:

Patent Number Title Of Patent Date Issued
8424121 Odour extraction device for a toilet pan Apr. 23, 2013
8286272 Toilet seat and toilet equipped therewith Oct. 16, 2012
7730560 Odorless toilet Jun. 8, 2010
7461410 Toilet odor ventilating assembly Dec. 9, 2008
7014778 Device and method for treating waste product Mar. 21, 2006
6457186 Air cleaning device for a toilet bowl Oct. 1, 2002
6370703 Odorless toilet Apr. 16, 2002
6363542 Toilet ventilator Apr. 2, 2002
6249919 Passive deodorization device Jun. 26, 2001
6209146 Ventilation device for a toilet Apr. 3, 2001
6202226 Portable waste odor collection apparatus Mar. 20, 2001
6167575 Bathroom ventilator inlet Jan. 2, 2001
6018824 Ventilator for toilet fixtures Feb. 1, 2000
5996131 Commode ventilation system Dec. 7, 1999
5809581 Odor-less toilet system Sep. 22, 1998
5802623 Electronic air deodorizer and method of using same Sep. 8, 1998
5671484 Toilet ventilator apparatus Sep. 30, 1997
5575019 Toilet ventilation system Nov. 19, 1996
5522093 Toilet ventilation system Jun. 4, 1996
5388280 Ventilation toilet assembly for use in a recreation vehicle Feb. 14, 1995
5341521 Environmentally controlled standard toilet Aug. 30, 1994
5333321 Environmentally controlled commercial/public toilet Aug. 2, 1994
5299326 Vehicle toilet vent apparatus Apr. 5, 1994
5257421 Air fresh toilet Nov. 2, 1993
5210884 Environmentally controlled toilet May. 18, 1993
5199111 Toilet odor removing apparatus Apr. 6, 1993
5016294 Odorless toilet May. 21, 1991
4984305 Self ventilating toilet Jan. 15, 1991
4937891 Valve for waste collection and storage Jul. 3, 1990
4933996 Toilet deodorizer Jun. 19, 1990
4933995 Flush-operated bathroom fan Jun. 19, 1990
4901715 Apparatus and method for breathing through the soil-stack during a high-rise fire Feb. 20, 1990
4811753 Recreational vehicle drain vent Mar. 14, 1989
4692951 Sanitary facility room for clean room Sep. 15, 1987
4608175 Integral waste disposal system Aug. 26, 1986
4590629 Toilet ventilating device May. 27, 1986
4583250 Device for the removal of foul air from toilet bowls Apr. 22, 1986
4581780 Precast concrete toilet with vent Apr. 15, 1986
4567613 Method and article for neutralizing offensive odors Feb. 4, 1986
4556999 Apparatus for removing noxious fumes and gases from a commode bowl and preventing their escape to the immediate vicinity Dec. 10, 1985
4551865 Ventilator for a lavatory pan Nov. 12, 1985
4385912 Apparatus for extracting liquid and foam from gas May. 31, 1983
4175293 Toilet bowl odor removing apparatus and hinge Nov. 27, 1979
4117559 Bathroom deodorizer and odorizer devices and methods of making and using the same Oct. 3, 1978
4042981 Toilet waste holding apparatus Aug. 23, 1977











 
 
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