Subscriber announcement system
CA 2310309 C · Owner: Brush, Wesley A. · Inventors: Munson, Gary A.; Hanlon, Edite M.; Chen, Jennifer H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A communications network includes plural intelligent peripherals a single, announcement management system a service provisioning platform and plural service, control points controlled by corresponding application programs. A method of provisioning a service in the network includes recording an announcement at an intelligent peripheral, receiving an ID number associated with the announcement from, the announcement management system at the intelligent peripheral sending the , m, number from the intelligent peripheral through a switch to a service control point, distributing the ID number from the service control point to all other service control, points, and distributing the announcement …
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 May 30, 2000 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 30, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 30, 2022.
- 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.