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Class Information
Number: 4/288
Name: Baths, closets, sinks, and spittoons > Strainer, stopper, plug or closure > Combined strainer and pipe coupling
Description: The strainer is combined with the coupling uniting the outlet pipe to the receptacle.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8628657 Floor sink strainer assembly Jan. 14, 2014
8578523 Vandal-proof floor sink strainer Nov. 12, 2013
8438807 Firestop drain assembly May. 14, 2013
8347906 Floor drain installation system Jan. 8, 2013
8347424 Leveling mechanism for floor drain Jan. 8, 2013
8307469 Removable floor sink drain lock Nov. 13, 2012
8196229 Adjustable floor drain Jun. 12, 2012
8112827 Shower drain adapter Feb. 14, 2012
7964095 Floor drain Jun. 21, 2011
7856680 Shower drainage outlet in aircraft Dec. 28, 2010
7854029 Water drain assembly Dec. 21, 2010
7799216 Drain trap with strainer and cup Sep. 21, 2010
7699981 Drain installation system and method Apr. 20, 2010
7531088 Drain trap with strainer and cup May. 12, 2009
7472435 P-trap drainage device Jan. 6, 2009
7376983 Debris catch system for food preparation drains and other applications May. 27, 2008
7131150 Device to assist P-trap drainage Nov. 7, 2006
7121228 Animal waste disposing assembly Oct. 17, 2006
7032253 Sink basket and plug assembly Apr. 25, 2006
7013500 Strainer Mar. 21, 2006
6890427 Waste water outlet unit May. 10, 2005
6766545 Shower drain Jul. 27, 2004
6763533 Sink drainage system and method Jul. 20, 2004
6640358 Strainer assembly for bathtub drains and the like Nov. 4, 2003
6588029 Safety drain guard for swimming pools and spas Jul. 8, 2003
6494325 Toilet water-line filter Dec. 17, 2002
6368503 Filtered fluid dispensing system Apr. 9, 2002
6350373 Adjustable drain apparatus Feb. 26, 2002
6330724 Drain cover locking device Dec. 18, 2001
6317906 Strainer assembly for bathtub drains and the like Nov. 20, 2001
6209572 Device for repairing drains Apr. 3, 2001
6185758 Device in draining gutters Feb. 13, 2001
6175971 Shower drain Jan. 23, 2001
6067669 Strainer equipped drain plug assembly May. 30, 2000
6058526 Drain assembly May. 9, 2000
5940898 Drain assembly Aug. 24, 1999
5878448 Floor drain extension Mar. 9, 1999
5724684 Raised strainer Mar. 10, 1998
5545322 Cold and hot water combination filtering faucet Aug. 13, 1996
5442819 Article catcher for sink drain Aug. 22, 1995
5397464 Trough type strainer box Mar. 14, 1995
5377362 Combined sink strainer stopper and scrub brush Jan. 3, 1995
5372715 Siphonage floor drain and port protector Dec. 13, 1994
5165118 Sink strainer assembly with snap lock Nov. 24, 1992
5078862 Washer standpipe drain visual filter Jan. 7, 1992
4999858 Floor drain pipe with improved straining structure Mar. 19, 1991
4984309 Drain system Jan. 15, 1991
4964180 Shower strainer mounting assembly Oct. 23, 1990
4949406 Sink trap filter assembly Aug. 21, 1990
4910811 Plastic floor drain Mar. 27, 1990

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