Methods and apparatus for originating voice calls
CA 2228682 C · Owner: Nortel Networks Corporation · Inventors: Bannister, Cecil H.; Edwards, Russell A.; Fink, Bradley A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In methods an apparatus for providing communications to a telecommunications terminal, a request for a, page of data is received at a data service node, the request specifying at least one particular terminal. A terminal status request is sent from the data, service node to a communications system which serves the particular terminal, the terminal status request specifying the particular terminal. The data, service node receives from the communications system a terminal status message containing information indicating a current status of the particular terminal. The data service node sends to, the data terminal a page of data indicating the current status of the particular , …
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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 September 26, 1996 and granted May 16, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2018.
- 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.