Token star switch
CA 2111075 A1 · Owner: Basso, Claude · Inventors: Basso, Claude; Verplanken, Fabrice; Calvignac, Jean
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention includes a switch having N ports (N > 1) each port beingconnected to a Token-Ring physical segment an additional port connected to, an on-board processor and a high-throughput port connected to a network of higher bandwidth than the Token Ring. The invention allows to route frames received at any one port to any or several ports to begin the routing of the, frames before they have been completely received at the input port and to di-, rectly forward frames from input to output of the high badwidth port.
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 December 9, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 9, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2015.
- 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.