KCL CORPORATION

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5059033 Detachable handle for shipping sacksExpiredDec 15, 89Oct 22, 91[B65D]
4964739 Flexible container having tamper evident closureExpiredApr 06, 89Oct 23, 90[B65D]
4902140 Detachable handle for shipping sacksExpiredApr 06, 89Feb 20, 90[B65D]
4892512 Method of making reclosable flexible containers having fastener profiles affixed to exterior of bag wallsExpiredAug 11, 87Jan 09, 90[B31B]
4756628 Reclosable flexible container having a downwardly depending cuffExpiredDec 10, 86Jul 12, 88[B65D]
4637063 Reclosable bag with sealed laminated liner and methodExpiredMar 04, 85Jan 13, 87[B65D]
4620320 Substantially leakproof zipper closure for bags and methodExpiredDec 20, 84Oct 28, 86[B65D]
4534752 Apparatus and method for securing top ends of sack gussetsExpiredApr 12, 84Aug 13, 85[B31B]
4415386 Method and apparatus for assembling and attaching zipper closure strips to sacksExpiredFeb 12, 82Nov 15, 83[B32B]
4262581 Method and apparatus for making printed gusset bagsExpiredMay 04, 79Apr 21, 81[B31B]
4241865 Reclosable shipping sack and methodExpiredAug 06, 79Dec 30, 80[B65D]

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