Innovac Technology Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5018946 Fluid pump apparatusExpiredMar 14, 90May 28, 91[F04F]
5011376 Valve control system for an air displacement type pumpExpiredApr 05, 90Apr 30, 91[F04F]
5002463 Apparatus and method for flow controlExpiredApr 12, 89Mar 26, 91[A01K]
4785841 Bladder valveExpiredApr 05, 88Nov 22, 88[F16K, B08B]
4770610 Frail material slurry pumpExpiredAug 07, 87Sep 13, 88[F04F]
4517099 Apparatus and method for handling solids in liquidExpiredOct 07, 83May 14, 85[B01D]

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