AISIN-WARNER LIMITED

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4945482 Transmission control systemExpiredOct 12, 88Jul 31, 90[B60K, G05D]
4911260 Four-wheel drive vehicleExpiredAug 11, 88Mar 27, 90[B60R]
4896561 Lubricating oil supply device for transmission mechanismExpiredJan 21, 86Jan 30, 90[F16H]
4896739 Four-wheel drive vehicleExpiredAug 11, 88Jan 30, 90[B60K]
4890512 Hydraulic servo for friction coupling element of automatic transmissionExpiredJan 12, 88Jan 02, 90[F16H]
4854195 Hydraulic control system for vehicular automatic transmission with two accumulator control values to vary back pressure to accumulator to follow the change in engine torqueExpiredJul 29, 85Aug 08, 89[B60K]
4846020 Vehicular automatic transmission control system with gear shift inhibitorExpiredMar 27, 84Jul 11, 89[B60K]
4846022 Vehicular automatic transmission control system with gear shift inhibitorExpiredMar 27, 84Jul 11, 89[B60K]
4833945 Vehicular automatic transmission control systemExpiredMar 27, 84May 30, 89[B60K]
4807492 Mechanism for supporting transmission shafts of automatic transmission apparatusExpiredMay 25, 86Feb 28, 89[F16H]
4781081 Hydraulic control for vehicle transmissionExpiredJan 21, 86Nov 01, 88[B60K]
4763748 Four-wheel drive vehicleExpiredDec 18, 85Aug 16, 88[B60K]
4763749 Four-wheel drive vehicleExpiredDec 24, 85Aug 16, 88[B60K]
4753132 Hydraulic servo for friction coupling devices of automatic transmissionsExpiredApr 29, 85Jun 28, 88[F16H]
4753136 Hydraulic control of transmissionExpiredJan 17, 86Jun 28, 88[B60K]
4748809 Hydraulic servo mechanism of automatic transmission for vehicleExpiredMar 26, 86Jun 07, 88[F15B]
4745826 Shift condition detector for an automatic vehicle transmissionExpiredJan 17, 86May 24, 88[B60K]
4739678 Oil separating structure of automatic transmissionExpiredDec 09, 85Apr 26, 88[F16H]
4738159 Four-wheel drive automatic transmissionExpiredFeb 05, 87Apr 19, 88[F16H]
4736653 Power transmissionExpiredAug 01, 85Apr 12, 88[F16H]

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