The Marquardt Company

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4915038 Sudden expansion (SUE) incinerator for destroying hazardous materials and wastes and improved methodExpiredJun 22, 89Apr 10, 90[F23G]
4796835 ProjectileExpiredAug 24, 87Jan 10, 89[F42B]
4785748 Method sudden expansion (SUE) incinerator for destroying hazardous materials & wastesExpiredAug 24, 87Nov 22, 88[F23G]
4752052 ProjectileExpiredDec 17, 86Jun 21, 88[F42B]
4496159 Aerial gunnery target deployment systemExpiredMay 24, 83Jan 29, 85[B64D]
4320298 Warhead detectorExpiredApr 27, 62Mar 16, 82[G01N]

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