Q Corporation

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4412421 Engine operated by a non-polluting recyclable fuelExpiredFeb 02, 81Nov 01, 83[F02G]
4388848 Cutter ring and method of making sameExpiredMay 04, 81Jun 21, 83[B26D]
4371788 Energy device powered by the motion of water beneath wavesExpiredJun 26, 80Feb 01, 83[F03B]
4248048 Engine operated by a non-polluting recyclable fuelExpiredSep 01, 78Feb 03, 81[F23B, F02G]

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