Direct signaling system for narrowband communications networks
CA 2118353 C · Owner: Veeraraghavan, Malathi · Inventors: La Porta, Thomas F.; Veeraraghavan, Malathi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A signaling provider network which receives and transmits at least a subset of all, signaling information associated with a particular call or communication service, allows the received/transmitted signaling information to be processed independently, of the originating or terminating communication carrier network which originates, and/or completes the call, or provides the communication 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 October 18, 1994 and granted April 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 18, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2016.
- 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.