Services and transactions in a telephony network
CA 2529672 C · Owner: Kahn, Ari · Inventors: Kahn, Ari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of operating a telephony service on a telephony network is disclosed. The method comprises the steps of establishing and/or requesting a telephonic connection and/or a call between a caller and a call recipient receiving a , command signal initiated by the caller and/or the call recipient and/or the telephony network during any phase in the call process the command signal , comprising a data signal and/or tone and initiating a service to the caller and/or the call recipient, or initiating a transaction between the caller and the call recipient in response to receiving the command signal other than a standard call connect and/or disconnect command. Preferably the data signal , …
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 July 12, 2004 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 12, 2026.
- 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.