Atm cell switching device with nonblocking structure
CA 2264660 A1 · Owner: Alcatel · Inventors: Fiche, Georges
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns an ATM cell switching device comprising at least an input stage and an output stage each of said stages including at least two switch matrices (411¿i? 414¿j?, 422¿k?), wherein there exists a specific path between each input (412¿i?) of one of said input matrices and each output (442¿j?) of each of said output matrices such that the data flow carried by any intermediate link (413¿i? 423¿j?) forming said specific path is a subset of flows carried respectively by the input link and the output link with which they are associated. The device may include for example two or three stages.
Read the whole patent
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 July 6, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2020.
- 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.