Sachsenwerk Aktiengesellschaft

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5206616 Switching device for the interruption of fault currentsExpiredJul 10, 91Apr 27, 93[H01H]
5191516 Switch supportExpiredMar 22, 91Mar 02, 93[H05K]
5099093 Vacuum switching chamberExpiredFeb 01, 91Mar 24, 92[H01H]
5070428 Encapsulated switching system with longitudinal coupling of bus bars, inner partitions, and coupling fieldsExpiredNov 30, 89Dec 03, 91[H02B]
5055639 Contact arrangement for a vacuum switchExpiredApr 20, 90Oct 08, 91[H01H]
4983793 Switch chamber for a vacuum switchExpiredAug 07, 89Jan 08, 91[H01H]
4950979 Insulating member, functioning as a voltage divider in a high voltage systemExpiredAug 17, 89Aug 21, 90[H01B, G01R]
4814559 Electrical switching device for high switching voltagesExpiredApr 03, 87Mar 21, 89[H01H]
4806715 Tensioning device for the driving spring of an energy store for electrical switchesExpiredJul 10, 87Feb 21, 89[H01H]
4791520 Fault protection for a medium voltage transformer branchExpiredMar 09, 87Dec 13, 88[H02H]
4787480 Tensioning device for the energy store of an electrical switchExpiredAug 13, 87Nov 29, 88[F03G, H01H]
4736114 Electrical switching system and method to switch this systemExpiredFeb 24, 86Apr 05, 88[H01H]
4713501 Partitioned switching panel with insertable switching carriage and adjustable shutter mechanismExpiredDec 05, 86Dec 15, 87[H02B, H01H]

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