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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4874350 Torsional damper device comprising two coaxial parts cooperating with circumferentially acting springsExpiredAug 19, 87Oct 17, 89[F16D]
4800996 Clutch unit for motor vehicleExpiredAug 05, 87Jan 31, 89[F16D]
4782935 Clutch release bearing assembly in particular for automobile vehiclesExpiredApr 10, 87Nov 08, 88[F16D]
4733635 Heat generator for automobile vehiclesExpiredJul 30, 86Mar 29, 88[F24C, F22B]
4717119 Device for bleeding or for draining a heat exchanger, such as a radiator for a motor vehicleExpiredFeb 11, 87Jan 05, 88[F16K, B65D]
4714448 Torsional damper deviceExpiredDec 26, 85Dec 22, 87[F16D]
4705104 Heat exchanger, in particular for a motor vehicle, having a rigid connection between a bundle of tubes and a water box and perforated plate assemblyExpiredFeb 21, 85Nov 10, 87[F28D]
4697417 Torsional damping device having wide range clearance, and a hydraulic coupling having such a torsional damping device, in particular for a motor vehicleExpiredNov 12, 85Oct 06, 87[F16D]
4696384 Clutch cover assembly and clutch incorporating sameExpiredOct 24, 86Sep 29, 87[F16D]
4671400 Wear take-up assembly for the actuating arrangement of a coupling device such as a clutchExpiredFeb 12, 85Jun 09, 87[F16D]
4639239 Speed change device pulley with a seal around the hubExpiredNov 13, 85Jan 27, 87[F16H]
4634397 Torsional damper device for a clutch diskExpiredDec 19, 84Jan 06, 87[F16D]
4600092 Clutch cover and flywheel securement assemblyExpiredApr 28, 83Jul 15, 86[F16D]
4560366 Torsional damperExpiredFeb 07, 84Dec 24, 85[F16D]
4547176 Torsional damperExpiredFeb 07, 84Oct 15, 85[F16D]
4529075 Clutch release bearingExpiredJun 16, 82Jul 16, 85[F16D]
4498565 Clutch release bearingExpiredJan 19, 82Feb 12, 85[F16D]
4496017 Wheel hub assembly with integrated reduction gear and brake mechanismExpiredDec 20, 82Jan 29, 85[F16D]
4470493 Clutch release bearingExpiredJan 19, 82Sep 11, 84[F16D]
4453838 Torsion damping assembly and radially deformable bearing thereforExpiredDec 22, 81Jun 12, 84[F16C, F16D]

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