Signaling system utilizing source routing information in a packet network
CA 2124760 C · Owner: Iwata, Atsushi · Inventors: Iwata, Atsushi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
For executing a signalling operation of a virtual channel which is used for communication between a transmission side and a reception terminal in a connection-oriented packet network, the transmission side acquires source routing information relating to a source route path between the transmission side and the reception terminal. The transmission side includes a transmission terminal and a switch between the transmission terminal and the reception terminal. With reference to the source routing information the, transmission terminal carries out a signalling operation of a setup for the virtual channel. It is preferable that the switch acquires the source routing information to transmit 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 May 31, 1994 and granted September 26, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2016.
- 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.