Self-routing switching system having dual self-routing switch module network structure
CA 2011174 C · Owner: Isono, Osamu · Inventors: Nishino, Tetsuo; Tachibana, Tetsuo; Fukui, Toshimasa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A self-routing switching system connected between input highways and output highways includes, conversion modules, doubled SRM networks output, modules, and first and second selectors. Normally one, of the SRM networks is connected between the conversion modules and output modules through the first and second modules. When a request to switch the active network to the other SRM network, the first and second selectors switch connections to the conversion modules and output modules so that the other SRM network is connected between the conversion modules and output modules. Before actually switching the connections it, is determined whether or not all cells have been discharged from the …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 28, 1990 and granted October 19, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2012.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.