Marler Haley Exposystems Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5259135 Display deviceExpiredFeb 01, 91Nov 09, 93[G09F]
4995212 Collapsible frameworkExpiredAug 04, 89Feb 26, 91[E04H]
4912866 Display frameExpiredMay 18, 88Apr 03, 90[G09F]
4684425 Method of making cloth covered panels having edging stripsExpiredAug 13, 85Aug 04, 87[B32B]
4653563 Structure incorporating stabilizing meansExpiredSep 24, 84Mar 31, 87[A47G]
4606394 Barrier systems and the likeExpiredSep 07, 84Aug 19, 86[E04H]
4574506 Tensioning of flexible sheets across framesExpiredFeb 22, 84Mar 11, 86[G09F]
4569143 Structural frameExpiredAug 23, 84Feb 11, 86[G09F]
D281513 Portable sign and stand thereforExpiredMar 17, 82Nov 26, 85[]
4533122 Barrier systemExpiredJun 07, 82Aug 06, 85[E04F]
4481771 Heat exchanger stack apparatusExpiredAug 06, 82Nov 13, 84[F02G]
4443911 Device for interconnecting panelsExpiredNov 24, 82Apr 24, 84[E04B, E05D, A47G]
4444240 Foldable deviceExpiredJul 02, 82Apr 24, 84[E06B]
4295754 Display structures and the likeExpiredMar 29, 79Oct 20, 81[F16B]
4270795 Folding chairExpiredDec 13, 78Jun 02, 81[A47C]

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