LEGRIS

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4782852 Assembly for perfecting fluid distribution in multiple conduitsExpiredDec 11, 87Nov 08, 88[F16K]
4745845 Compressed air flow regulating devicesExpiredJun 27, 85May 24, 88[F15B]
4716934 Connectors used in fluid techniquesExpiredApr 14, 86Jan 05, 88[F16K]
4608910 Compressed fluid saving deviceExpiredJun 12, 85Sep 02, 86[F15B]
4492149 Pressure relay adapted to signal the position of the movable member of a jackExpiredAug 19, 83Jan 08, 85[F01B]
4469338 Gasket disposed between an apparatus and a threaded coupling for pipe conveying high pressure fluidExpiredMar 18, 83Sep 04, 84[F16L, F16J]
4432385 Devices for regulating the flow and the pressure of gaseous fluidsExpiredApr 16, 81Feb 21, 84[F16K]
4431216 Instant fittings for pipes and tubesExpiredMar 17, 81Feb 14, 84[F16L]
4399976 Valves with lenticular or spherical closing memberExpiredDec 15, 80Aug 23, 83[F16K]
4356936 Remote-controlled valves functioning by percussionExpiredMay 28, 80Nov 02, 82[B67B]

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