Enhanced telecommunications network
CA 2254398 C · Owner: Zeljkovic, Ilija · Inventors: Narayanan, Shrikanth Sambasivan; Zeljkovic, Ilija; Rahim, Mazin G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system deployed in a telecommunications network includes a terminal device, a telephone network switch, a network service and an optional network, database. The terminal device measures stores, and transmits to the network, service data characterizing the terminal device an acoustic environment, and, optionally data characterizing the speech of a local population. These data can be stored in the network database facilitating long-term adaptation of the network service.
Read the whole patent
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 18, 1998 and granted May 7, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 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.