Communication system and method using two-way paging to provide call control
CA 2190671 C · Owner: Weber, Roy Philip · Inventors: Weber, Roy Philip; Goldman, Shelley B.; Foladare, Mark Jeffrey
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method of using two-way paging to establish communications with a mobile party having a Personal Telephone Number (PTN). The mobile party uses the two-way pager to transmit call control parameters which are used by the telephone network to route calls directed to the party's PTN. The mobile party may also use the pager to transmit a location indicator which specifies the subscriber's location and informs the network of the subscriber's intention to receive calls according to a call examination procedure. To invoke the call examination procedure, the bandwidths and protocols of all possible terminating stations associated with the subscriber's location are stored in the network …
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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 November 19, 1996 and granted October 24, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 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.