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Class Information
Number: 4/286
Name: Baths, closets, sinks, and spittoons > Strainer, stopper, plug or closure
Description: The miscellaneous subclass for strainers, closures and stoppers, for basins, sinks, tubs or other specialized strainer or stopper structure classified in this class.










Sub-classes under this class:

Class Number Class Name Patents
4/293 Closure 33
4/288 Combined strainer and pipe coupling 80
4/287 Combined strainer, plug, or valve 104
4/295 Plugs 135
4/290 Strainer, receptacle 50
4/289 Strainers in series 21
4/292 Strainer 140


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8607376 Cover and method for covering the flange of a waste water strainer Dec. 17, 2013
8578523 Vandal-proof floor sink strainer Nov. 12, 2013
8566976 Adjustable drain assembly Oct. 29, 2013
8468619 Open/close device of a washing tank drain system Jun. 25, 2013
8424123 Decorative disposer flange and strainer assembly Apr. 23, 2013
8347906 Floor drain installation system Jan. 8, 2013
8307469 Removable floor sink drain lock Nov. 13, 2012
8239974 Elongated shower drain Aug. 14, 2012
8117685 Flexible sink strainer Feb. 21, 2012
8011030 Pop-up stopper having draining and straining functions Sep. 6, 2011
7971309 Sink disposal multipurpose tool Jul. 5, 2011
7900289 Magnetic sink strainer Mar. 8, 2011
7854029 Water drain assembly Dec. 21, 2010
7832027 Flexible sink strainer Nov. 16, 2010
7788743 Drain cover Sep. 7, 2010
7784486 Drain tap Aug. 31, 2010
7673364 Garbage disposal combination safety poker and scraper Mar. 9, 2010
7517452 Filter assembly Apr. 14, 2009
7504024 Apparatus for draining at least one sink Mar. 17, 2009
7503083 Means for covering the flange of a waste water strainer Mar. 17, 2009
7490376 Drain outlet with integral clamp for use with a plumbing fixture Feb. 17, 2009
7480954 Sink disposer stuffer and scraper tool Jan. 27, 2009
7467425 Drain cover and associated methods Dec. 23, 2008
7246386 Waste outlet assembly Jul. 24, 2007
7213274 Assembly for mounting shower or bath insert, insert assembly, and method of mounting insert assembly May. 8, 2007
7131150 Device to assist P-trap drainage Nov. 7, 2006
7122117 Self-cleaning composite deck drain Oct. 17, 2006
7096516 Alarming plumbing screen Aug. 29, 2006
6938279 Drain plug Sep. 6, 2005
6880179 Sink stopper Apr. 19, 2005
6859950 Apparatus and methods for drain strainer assembly installation and maintenance Mar. 1, 2005
6763533 Sink drainage system and method Jul. 20, 2004
6756151 Unidirectional draining device Jun. 29, 2004
6735791 Disposal adapter May. 18, 2004
6687925 Load resistant floor drain assembly Feb. 10, 2004
6668390 Debris recovery for drainage system Dec. 30, 2003
6637464 Hydrostatic test cap Oct. 28, 2003
6601242 Flexible sink strainer and stopper Aug. 5, 2003
6588029 Safety drain guard for swimming pools and spas Jul. 8, 2003
6567996 Drain lock May. 27, 2003
6553583 Stop valve for basin or sewer Apr. 29, 2003
6487729 Hair trap for drains and sinks Dec. 3, 2002
6453482 Safety drain guard for swimming pools and spas Sep. 24, 2002
6442770 Shutoff assembly Sep. 3, 2002
6381775 Adjustable floor drain apparatus May. 7, 2002
6367102 Drain assembly with installation aid stopper guide Apr. 9, 2002
6338168 Weight core drain covering system Jan. 15, 2002
6330724 Drain cover locking device Dec. 18, 2001
6314590 Drainage device Nov. 13, 2001
6269495 Adjustable floor drain apparatus Aug. 7, 2001

1 2 3 4










 
 
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