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Class Information
Number: 4/DIG.14
Name: Baths, closets, sinks, and spittoons > Pipe strainers
Description:










Patents under this class:

Patent Number Title Of Patent Date Issued
8382993 Drain filter apparatus and method Feb. 26, 2013
8201281 Toilet bowl trapping device Jun. 19, 2012
7856680 Shower drainage outlet in aircraft Dec. 28, 2010
7472435 P-trap drainage device Jan. 6, 2009
7131150 Device to assist P-trap drainage Nov. 7, 2006
7128834 Strainer for collecting debris from a drain Oct. 31, 2006
6859950 Apparatus and methods for drain strainer assembly installation and maintenance Mar. 1, 2005
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
6494325 Toilet water-line filter Dec. 17, 2002
6453482 Safety drain guard for swimming pools and spas Sep. 24, 2002
6092244 Locking grate device for a floor sink Jul. 25, 2000
5638557 Sink trap with valuables capture vessel Jun. 17, 1997
5546614 Refuse collector drainpipe insert Aug. 20, 1996
5372718 Filtering device Dec. 13, 1994
5354465 Large capacity filter system Oct. 11, 1994
5241979 Structure of an elbow pipe Sep. 7, 1993
5078862 Washer standpipe drain visual filter Jan. 7, 1992
5075905 Drain trap assembly Dec. 31, 1991
5038816 Drain pipe trap Aug. 13, 1991
5027447 Retractable guard for sewage pipes Jul. 2, 1991
4996725 Retractable guard for sewage pipes Mar. 5, 1991
4949406 Sink trap filter assembly Aug. 21, 1990
4932080 Retractable guard for sewage pipes Jun. 12, 1990
4676894 Suction fittings for whirlpool bathtubs, and the like Jun. 30, 1987
4539718 Drainpipe strainer Sep. 10, 1985
4352368 Plumbing apparatus Oct. 5, 1982
4301554 Drain trap Nov. 24, 1981
4244061 Urinals Jan. 13, 1981
4207631 Drain strainer Jun. 17, 1980
4179762 Trap and solids removal assembly for drains Dec. 25, 1979
4164048 Combination sink trap access port filtration device Aug. 14, 1979
4051042 Fluid flow filtering arrangement Sep. 27, 1977
4032455 Traps for sinks, laundry tubs and the like Jun. 28, 1977
4031914 Sink trap with clean out opening Jun. 28, 1977
3959831 Wash basin drain filter Jun. 1, 1976
3954116 Sound-dampening connection May. 4, 1976
3935602 Traps for sinks, laundry tubs and the like Feb. 3, 1976











 
 
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