Vosper Hovermarine Limited

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4529054 Fluid flow control systemsExpiredOct 06, 83Jul 16, 85[B63B]
4444143 Marine vehiclesExpiredJul 17, 81Apr 24, 84[B63B]
4428448 Fluid-cushion supported apparatusExpiredFeb 25, 82Jan 31, 84[B60V]
4363372 Gas-cushion vehiclesExpiredMay 20, 80Dec 14, 82[B60V, B63B]
4326477 Gas-cushion vehiclesExpiredJun 10, 80Apr 27, 82[B60V]
4303034 Vehicles for operating over waterExpiredJun 10, 80Dec 01, 81[B63B]

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