Chemand Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6712239 System and method for accurately blending fluidsExpiredJan 30, 03Mar 30, 04[B67D]
6554162 System and method for accurately blending fluidsExpiredMay 24, 01Apr 29, 03[B67D]
6543483 Fluid handling port arrayExpiredOct 30, 01Apr 08, 03[F16K]
6368067 Dual chamber liquid pumpExpiredAug 22, 00Apr 09, 02[F04F]
6186745 Gas pressurized liquid pump with intermediate chamberExpiredApr 28, 99Feb 13, 01[F04F]
6148667 Pressure vessel isolation carriageExpiredJan 28, 99Nov 21, 00[G01F]
6148846 Waste liquid collection systemExpiredMar 16, 99Nov 21, 00[F04F]
5878924 Plunger--actuated chemical dispense headExpiredJul 28, 97Mar 09, 99[B22D]
5832948 Liquid transfer systemExpiredDec 20, 96Nov 10, 98[G05D]

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