J. CASHEW, JR. TRUST U/A DTD OCTOBER 7, 1993

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4874300 Ceramic step bearing in a centrifugal pumpExpiredDec 21, 87Oct 17, 89[F04B]
4822256 Bearing support for spherical pumpsExpiredJun 09, 86Apr 18, 89[F04D, F16C, H02K]
4818193 Centrifugal pump selectively mountable in centerline or inline positionExpiredSep 17, 87Apr 04, 89[F04B]
4758758 Rotor for electric machines having a spherical gap for the magnetic fluxExpiredSep 10, 86Jul 19, 88[H02K]
4728268 Rotodynamic pumpExpiredJul 29, 86Mar 01, 88[F04B]
4682581 Secondary circulation systemExpiredFeb 13, 86Jul 28, 87[F24H]
4644208 Stator having a spiral yokeExpiredNov 02, 84Feb 17, 87[H02K]
4620120 Stator having tooth lamination strips lying between circular cylindersExpiredNov 02, 84Oct 28, 86[H02K]
4615662 Axial thrust compensation for centrifugal pumpExpiredNov 21, 85Oct 07, 86[F04B]
4599530 Rotor supported to be able to wobbleExpiredNov 02, 84Jul 08, 86[H02K]
4580335 Spherical rotor for electrical motorsExpiredJan 25, 84Apr 08, 86[F04B, H02K]
4561133 Jet stream deviceExpiredApr 09, 84Dec 31, 85[A47K, E04H]
4471835 Heat transfer pumpExpiredMar 16, 82Sep 18, 84[F28F]
4471253 Stator for ball motorsExpiredJul 12, 82Sep 11, 84[H02K]
4462752 In-line centrifugal pumpExpiredJul 12, 82Jul 31, 84[F04D]
4437484 Utility water system with a pressureless storage container, particularly for solar installationsExpiredMar 16, 82Mar 20, 84[F04B]
4352646 Rotodynamic pump with spherical motorExpiredFeb 27, 81Oct 05, 82[F04B]

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