Baker CAC, Inc.

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4809510 Flowline power generatorExpiredFeb 25, 87Mar 07, 89[F01K, F01B]
4654537 Flowline power generatorExpiredJan 24, 85Mar 31, 87[F03B]
4645179 Gate valve seal systemExpiredOct 01, 85Feb 24, 87[F16K]
4630636 Actuator with nonelastomeric sealExpiredNov 16, 83Dec 23, 86[F16K]
4601457 Fluid pressure actuator valveExpiredOct 01, 85Jul 22, 86[F16K, F15B, F01B]
4523516 Actuator having Belleville washer configuration operating in concert with a piston cylinder memberExpiredFeb 27, 84Jun 18, 85[F01B, F16J]
4479506 Conduit blowout preventerExpiredAug 09, 82Oct 30, 84[F16K]
4470340 Locking mechanism for fluid operated actuatorExpiredMar 01, 82Sep 11, 84[F01B]
4462301 Bourdon tube actuatorExpiredNov 04, 81Jul 31, 84[F16K, G01L, F01B]
4445424 Actuator having Belleville washer configuration operating in concert with a piston cylinder memberExpiredOct 02, 81May 01, 84[F01B]
4442756 Heat sensitive locking deviceExpiredAug 24, 81Apr 17, 84[F15B]
4442757 Fluid pressure actuator having bias element immersed in non-corrosive environmentExpiredAug 24, 81Apr 17, 84[F01B]
4436105 Valve actuator having an adjustable collet lockExpiredNov 04, 81Mar 13, 84[F16K]
4422503 Control line blow out preventerExpiredNov 04, 81Dec 27, 83[E21B]
4413651 Diaphragm valve and methodExpiredAug 24, 81Nov 08, 83[F16K]
4374487 Pilot with cantilevered springExpiredJan 16, 81Feb 22, 83[F16K]
4372333 Valve actuating apparatus and methodExpiredAug 24, 81Feb 08, 83[F16K, F17D]
4349043 Method and apparatus for prevention of over-pressurization of a pressure responsive deviceExpiredJun 06, 80Sep 14, 82[F16K]
4349175 Valve actuator having a continuously charged accumulatorExpiredDec 10, 80Sep 14, 82[F16K, F15B]
4325402 Bimodal, non-venting pneumatic relayExpiredApr 01, 80Apr 20, 82[F16K]

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