Communication system and method using two-way paging to provide call control
CA 2190670 C · Owner: Goldman, Shelley Betty · Inventors: Weber, Roy Philip; Foladare, Mark Jeffrey; Goldman, Shelley Betty
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. The mobile party is equipped with a twoway pager which the party may use to provide call control. The pager is periodically queried by a network and/or paging service to determine whether or not the pager is reachable. If the pager becomes unreachable, and thereafter a call is placed to the party's Personal Telephone Number, the network routes the call to a default station. If the pager is reachable any one of, a number of alternative call routing procedures may be invoked including: registration type routing, call-by-call routing, revertive calling call …
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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 January 16, 2001. 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.