Communication switching module
CA 2038053 A1 · Owner: Henrion, Michel Andre Robert · Inventors: Henrion, Michel Andre Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communication switching module (SM, SM' SMn") used, in module- stages of a multi- path self- routing switching network (SN) and able to transfer cells or packets of information from any input thereof to at least one of the outputs thereof. The switching module is built up with at least two stages (ISE11-14; ISE21-24; ISE31-34) of switching elements (ISE) each able to transfer these cells from inlets thereof to at least one outlet thereof. The switching element (ISE) as well as the switching module (SM, SM', SM") has at least three outlets/ outputs which are arranged in routing- groups/ module- routing- groups to anyone outlet/ output of which a cell may be transferred respectively, each …
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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 March 12, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 12, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.