BRITISH HOVERCRAFT CORPORATION LIMITED

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4433745 Air cushion vehicleExpiredJul 07, 81Feb 28, 84[B60V]
4417637 Air cushion vehicleExpiredFeb 17, 82Nov 29, 83[B60V]
4398615 Air cushion vehiclesExpiredJul 14, 81Aug 16, 83[B60V]
4397366 Air cushion vehiclesExpiredFeb 17, 82Aug 09, 83[B60V]
4337106 Method of making air cushion vehicle flexible skirtsExpiredJul 24, 80Jun 29, 82[B32B]
4312690 Method of making air cushion vehicle flexible skirtsExpiredJul 24, 80Jan 26, 82[B32B]
4279322 Air cushion vehicle flexible skirt assembliesExpiredApr 23, 79Jul 21, 81[B60V]
4248320 Air cushion vehicle flexible skirtsExpiredJun 21, 79Feb 03, 81[B60V]
4236593 Air cushion vehicle flexible skirtsExpiredFeb 26, 79Dec 02, 80[B60V]
4215757 Attachment device for releasably connecting flexible skirt components to an air cushion vehicleExpiredDec 06, 78Aug 05, 80[B60V]

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