WALTEC INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4833740 Integral sink deck supportExpiredSep 15, 87May 30, 89[E03C]
4726390 Hose bibb vacuum breakerExpiredMar 20, 87Feb 23, 88[F16K]
4662399 Single lever mixing valveExpiredJan 08, 86May 05, 87[F16K]
4630647 Pipe repair clampExpiredNov 27, 85Dec 23, 86[F16L]
4559650 Stainless steel toiletExpiredNov 09, 83Dec 24, 85[E03D]
4493338 Washerless faucetExpiredDec 14, 82Jan 15, 85[F16K]
4478367 Shower pulsatorExpiredSep 23, 82Oct 23, 84[B05B]
4456021 Sink with colanderExpiredSep 24, 82Jun 26, 84[B08B]
4424952 Metering unitExpiredSep 27, 82Jan 10, 84[F16K]
4337790 Filtering deviceExpiredNov 03, 80Jul 06, 82[E03D]
4320540 Discharge drain assemblyExpiredNov 03, 80Mar 23, 82[A47K, E03C]

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