Square D Starkstrom GmbH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4931757 Contactor and/or circuit breakerExpiredNov 17, 88Jun 05, 90[H01H]
4719542 Quick-mount device for contactorsExpiredJan 22, 86Jan 12, 88[H05K]
4713498 Switch gearExpiredOct 15, 86Dec 15, 87[H01H]
4713636 Circuit-breakerExpiredJul 23, 86Dec 15, 87[H01H]
4703141 Actuation attachment for electrical controlling and signalling devices, particularly for emergency circuit breakersExpiredAug 16, 85Oct 27, 87[H01H]
4691978 Circuit breaker, in particular an accessory or motor contactorExpiredMar 10, 86Sep 08, 87[H01R]
4688011 Motor safety switchExpiredDec 16, 85Aug 18, 87[H01H]
4616117 Double pole circuit breakerExpiredAug 28, 85Oct 07, 86[H01H]
4594484 Switch bridge arrangement for an electrical switchExpiredMar 18, 85Jun 10, 86[H01H]
4578549 Snap action electrical switchExpiredAug 29, 84Mar 25, 86[H01H]
4577174 Electromagnet for electric switching deviceExpiredMar 11, 85Mar 18, 86[H01F]

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