Tenneco, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4846302 Acoustic mufflerExpiredAug 08, 86Jul 11, 89[F01N]
4790409 Muffler with reverse flow passagesExpiredMay 14, 87Dec 13, 88[F01N]
4557358 Synchronized clutch assembly with selective override for four-wheel drive vehiclesExpiredMar 04, 83Dec 10, 85[B60B, F16D]
4465308 Connection flange for tubular membersExpiredNov 05, 81Aug 14, 84[F16L]
4384826 Method and apparatus for controlling communication with a compressor unloader chamberExpiredMay 04, 81May 24, 83[F04B]
4378868 Live spindle wheel assembly with torque responsive drive engagement meansExpiredApr 24, 80Apr 05, 83[F16D]
4373329 Tubular exhaust manifoldExpiredJun 30, 80Feb 15, 83[F01N]
4343386 Ball movement coordinator and cam member for torque responsive hub clutchExpiredJul 21, 80Aug 10, 82[F16D]
4331210 Live spindle vehicle drive wheel assembly with axially moveable axleExpiredApr 24, 80May 25, 82[B60K, F16C]
4262785 Torque responsive hub clutchExpiredJul 19, 78Apr 21, 81[F16D]
4192401 Complete louver flow mufflerExpiredJul 26, 76Mar 11, 80[F01N]

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