Butterworth Jetting Systems, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5366561 Air preheater cleaning methodExpiredMay 06, 93Nov 22, 94[B08B]
5362109 Quick disconnect for high pressure fluid lineExpiredMar 22, 93Nov 08, 94[F16L]
5171136 Fluid flow control deviceExpiredJan 28, 91Dec 15, 92[F04B]
5107879 Rail tank car cleaning systemExpiredAug 30, 90Apr 28, 92[B08B]
5102312 Pump headExpiredAug 30, 90Apr 07, 92[F04B]
4826474 Forklift apparatus for unloading articles from an elevated surfaceExpiredDec 14, 87May 02, 89[B65G, B66F]
4785588 Liquid blasting systemExpiredDec 30, 86Nov 22, 88[B24C]
4759504 Dump control and valveExpiredDec 30, 86Jul 26, 88[F16K]
4758135 Pump headExpiredDec 30, 86Jul 19, 88[F04B, B65D, F16J]
4728041 Fluid spray apparatusExpiredApr 15, 87Mar 01, 88[B05B]
4690325 High pressure fluid delivery systemExpiredSep 17, 86Sep 01, 87[B05B]
4432386 Valve assembly for reciprocating plunger pumpExpiredDec 19, 80Feb 21, 84[F16K]

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