KEMCO SYSTEMS INC.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4997549 Air-sparged hydrocyclone separatorExpiredSep 19, 89Mar 05, 91[B03D]
4939988 Anti-coring grain treatment systemExpiredOct 25, 88Jul 10, 90[A23K]
4903414 High pressure conditioning systemExpiredJul 25, 88Feb 27, 90[F26B]
4895136 High-temperature heaters, methods and apparatusExpiredSep 02, 88Jan 23, 90[F24H]
4833793 Anaerobic pasteurizing conditioning systemExpiredApr 01, 87May 30, 89[F26B]
4817518 Anti-coring grain treatment systemExpiredAug 26, 85Apr 04, 89[A23K]
4731938 Anaerobic pasteurizing conditioning systemExpiredMay 20, 87Mar 22, 88[F26B]
4704804 Method of and apparatus for temperature conditioning of matterExpiredMar 13, 84Nov 10, 87[F26B]
4686779 Method of and apparatus for particulate matter conditioningExpiredNov 18, 85Aug 18, 87[F26B]
4441460 Apparatus for heating and utilizing fluidsExpiredMay 08, 81Apr 10, 84[F22B]
4418651 System for heating and utilizing fluidsExpiredJul 02, 82Dec 06, 83[F22B]
4337619 Hot water systemExpiredMay 08, 81Jul 06, 82[F02C]
4288978 Vapor generatorExpiredMay 08, 79Sep 15, 81[F02C]
4211071 Vapor generatorsExpiredMay 19, 78Jul 08, 80[F02C]

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