Device for connecting a telephone switch to a fixed telephone network via a plurality of fixed radiotelephone terminals of a radiotelephone network
CA 2241901 A1 · Owner: Alcatel · Inventors: Aucoeur, Jean-Pierre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This device allows a telephone switch (SW) to be connected to a fixed telephone network (PSTN) via a radiotelephone network (PLMN) GSM or derivative; a plurality of fixed user terminals (UT1 ... UT100) being connected to the said telephone switch. The said device comprises a plurality of fixed radiotelephone terminals (RT1 ... RT3), and means of co-ordination (CD) for dynamically managing the assignment of radiotelephone terminals (RT1 ... RT3) to telephone calls between the fixed telephone network (PSTN) and user terminals (UT1 ... UT100). They activate each instant one only of the fixed radiotelephone terminals (RT1 ... RT3) selected from those available at the instant considered to …
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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 July 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 2020.
- 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.