The Lamson & Sessions Co.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0128,041 Duct having silicone inner striping and composition for lubricious stripe coatingAbandonedDec 04, 07Jun 05, 08[F16L]
2007/0223,238 Candle mounting deviceAbandonedJun 05, 06Sep 27, 07[F21V]
2006/0022,456 Transition adapter for electrical conduitAbandonedJul 30, 04Feb 02, 06[F16L]
2006/0022,462 Fitting for converting an ENT socket to a schedule 40 socketAbandonedJul 30, 04Feb 02, 06[F16L]
6768050 Conduit connector apparatusExpiredFeb 15, 02Jul 27, 04[H01B]
6250908 Conduit-making apparatus with a variable diameter winding drumExpiredFeb 23, 99Jun 26, 01[B29C]
6211460 Multi-device yoke for a surface raceway systemExpiredDec 16, 98Apr 03, 01[H02G]
6176523 Joint for variable wall thickness conduitExpiredMar 04, 98Jan 23, 01[F16L]
6113158 Pipe joint couplingExpiredMay 21, 98Sep 05, 00[F16L]
6004417 Method for coupling conduits using microencapsulatable solvent adhesive compositionExpiredJan 20, 98Dec 21, 99[B29C]
5922798 Microencapsulatable solvent adhesive composition and method for coupling conduitsExpiredJan 20, 98Jul 13, 99[C08L, C08K]
5877236 Microencapsulatable solvent adhesive composition and method for coupling conduitsExpiredJan 20, 98Mar 02, 99[C08K, B32B]
5824724 Microencapsulatable solvent adhesive composition and method for coupling conduitsExpiredJan 20, 98Oct 20, 98[C08K]
5821293 Microencapsulatable solvent adhesive composition and method for coupling conduitsExpiredOct 29, 96Oct 13, 98[C08K]
5774041 Designer chime coverExpiredJul 18, 96Jun 30, 98[G08B]
5757267 Battery-operated receiver for wireless audible indication systemExpiredDec 12, 95May 26, 98[G08B]
5757305 Transmitter for wireless audible indication systemExpiredOct 09, 96May 26, 98[G08C]
5612666 Wireless audible indications systemExpiredJul 29, 94Mar 18, 97[G08B]
5568122 Wireless audible indication system with low power signal processingExpiredOct 21, 94Oct 22, 96[G08B, G08C]
5547230 Joint for variable wall thickness conduitExpiredApr 28, 95Aug 20, 96[F16L]

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