The Interlake Companies, Inc.

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5038922 High speed line shaft conveyorExpiredSep 05, 90Aug 13, 91[B65G]
4941955 Apparatus and method for electrochemical machining of flat plates or sheetsExpiredFeb 01, 89Jul 17, 90[B23H]
4932579 Stapling apparatus with stack joggersExpiredMar 23, 89Jun 12, 90[B27F, B65H]
4820390 Apparatus and method for continuous electrochemical machining of strip materialExpiredJul 06, 87Apr 11, 89[B23H]
4787801 Transport unit for flexible assembly systemExpiredOct 27, 86Nov 29, 88[B65H]
4756657 Stacker bin shuttleExpiredApr 04, 86Jul 12, 88[B65G]
4729484 Pallet rack constructionExpiredFeb 12, 86Mar 08, 88[A47F]
4591275 Apparatus for mixing pulverulent material on a conveyor beltExpiredJun 15, 84May 27, 86[B01F]
4557427 Powered strap accumulatorExpiredOct 15, 84Dec 10, 85[B65H]
4505415 Wire loop stitching machine headExpiredSep 20, 82Mar 19, 85[B27F]
4485955 Wire loop stitching machine head with cam-controlled staple supporterExpiredJan 12, 83Dec 04, 84[B27F]
4478270 Apparatus for casting low-density alloysExpiredApr 01, 81Oct 23, 84[B22D]
4450936 Removable step for pallet rackExpiredMay 18, 83May 29, 84[E06C]
4413219 Fork truck battery charging systemExpiredApr 02, 82Nov 01, 83[H02J]
4410123 Wire stitching machine headExpiredOct 21, 81Oct 18, 83[B27F]
4273494 Storage rack entry vehicleExpiredSep 27, 78Jun 16, 81[B65G, B66B]
4272707 Motor control techniquesExpiredDec 11, 78Jun 09, 81[B60L]
4252497 Article handling systemExpiredAug 22, 77Feb 24, 81[B65G]

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