Leyland Vehicles Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4768398 Continuously-variable transmissionExpiredDec 07, 87Sep 06, 88[F16H]
4718299 Driveline for a track laying vehicleExpiredMay 29, 87Jan 12, 88[F16H]
4679646 Driveline for regenerative brakingExpiredMar 12, 84Jul 14, 87[B60K]
4662240 Continuously variable transmissionExpiredNov 18, 85May 05, 87[F16H]
4662248 Hydraulic control systemExpiredJun 29, 84May 05, 87[B60K]
4641548 Drive line for a track-laying vehicleExpiredAug 27, 84Feb 10, 87[B62D, F16H]
4637627 Vehicle spring suspension arrangementExpiredFeb 16, 84Jan 20, 87[B60G]
4569251 Driveline for a track-laying vehicle with continuously variable steering and propulsion transmissionsExpiredAug 27, 84Feb 11, 86[F16H]
4524641 Continuously-variable ratio-transmissionExpiredOct 22, 82Jun 25, 85[F16H]
4519485 Driveline for regenerative brakingExpiredMar 18, 82May 28, 85[B60K]

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