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Class Information
Number: 4/449
Name: Baths, closets, sinks, and spittoons > Dry closets
Description: Subject matter having means for receiving human waste material wherein a flush liquid is not used to assist the removal of the material from the means.










Sub-classes under this class:

Class Number Class Name Patents
4/458 Automobile 25
4/450 Bedpans 42
4/459 Chemical 15
4/476 Enclosed receptacle type 59
4/460 Field 70
4/461 Plural 5
4/479 Receptacle type 57
4/485 Seat subclosure 4
4/144.1 Urinal 234
4/471 Valved bowl 13
4/474 Vault type 1
4/111.1 With heating meas 54
4/464 With magazine 1
4/462 With urinal 13


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8640273 Animal waste disposal system Feb. 4, 2014
D683864 Portable toilet Jun. 4, 2013
8266739 Remote-controlled vehicle for transporting bio-waste Sep. 18, 2012
7975325 Portable toilet Jul. 12, 2011
7966675 Dumpster and portable toilet system Jun. 28, 2011
7631371 Survival kit and commode Dec. 15, 2009
7540041 Collapsible toilet Jun. 2, 2009
7437854 Stabilizer system for portable structure Oct. 21, 2008
7373757 Skid base for portable building May. 20, 2008
7360259 Toilet system Apr. 22, 2008
7252121 Urine disposing apparatus and method Aug. 7, 2007
7159346 Portable toilet advertisement display system Jan. 9, 2007
7117646 Privacy enclosure Oct. 10, 2006
7111332 Waterless urinals which can be flushed Sep. 26, 2006
7005077 Shipboard human waste treatment for removing solids Feb. 28, 2006
6920650 Portable outdoor toilet with advertising indicia Jul. 26, 2005
6910230 Submergible public sanitary device Jun. 28, 2005
6766541 Joint for a portable restroom Jul. 27, 2004
6754914 Disposable toilet bowl for care Jun. 29, 2004
6735790 Vent stack screen for portable toilet holding tanks May. 18, 2004
6681413 Portable restroom having a removable waste storage container and method therefor Jan. 27, 2004
6668392 Enclosure for portable toilet Dec. 30, 2003
6651267 Toilet device, especially for bedridden persons Nov. 25, 2003
6601243 Toilet installation implementing composting with worms Aug. 5, 2003
6571402 Hitch mounted portable toilet seat Jun. 3, 2003
6558472 Cleaning device for the anus May. 6, 2003
6427256 Knockdown portable toilet Aug. 6, 2002
6393627 Waterless toilet cabana May. 28, 2002
6378142 Foldable privacy screen and portable toilet combination Apr. 30, 2002
6349426 Portable outdoor toilet with advertising indicia Feb. 26, 2002
6327719 Portable restroom having molded base assembly with internal tank Dec. 11, 2001
6260216 Composting toilet Jul. 17, 2001
6249919 Passive deodorization device Jun. 26, 2001
6233753 Hinged assembly for toilet seat construction May. 22, 2001
6212701 Completely automatic waterless closet Apr. 10, 2001
6138291 Toilet waste agitating mechanism Oct. 31, 2000
6125480 Vehicle mounted toilet seat Oct. 3, 2000
6115971 Portable restroom Sep. 12, 2000
6112338 Mixing drum and composting toilet Sep. 5, 2000
6101641 Waste removal method for dry toilets Aug. 15, 2000
6081940 Non-flushing toilet Jul. 4, 2000
6081941 Portable, self-contained toilet seat Jul. 4, 2000
6081939 Portable toilet Jul. 4, 2000
6081942 Portable, foldable toilet apparatus for attachment to tree trunks Jul. 4, 2000
6038711 Potty training device Mar. 21, 2000
6009570 Convertible bed/chair with waste disposal Jan. 4, 2000
5996136 Toilet Dec. 7, 1999
5991931 Waste system for toilets Nov. 30, 1999
5983415 Toilet riser Nov. 16, 1999
5960487 Dry toilet Oct. 5, 1999

1 2 3










 
 
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