Convergence of circuit-switched voice and packet-based media services
CA 2768069 C · Owner: Rockstar Bidco Lp · Inventors: Villarica, R. Alberto; Sylvain, Dany; Pyke, Craik R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In one embodiment, a service node will recognize an attempt to initiate a call from a first terminal to a second terminal and automatically provide information to media clients associated with the first and second terminals such that a media session can be readily established between the media clients in association with the call. The service node may be configured to interact with telephony switches that support the first or second terminals directly or indirectly via a signaling adaptor. In a second embodiment the service node will recognize an attempt to initiate a call and will route the call to a gateway which is controllable by the service node. Once the call is sent to the gateway …
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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 June 18, 2004 and granted December 31, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 18, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 18, 2026.
- 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.