Voice processing system
CA 2197734 C · Owner: International Business Machines Corporation · Inventors: Porter, Lawrence Leon
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of providing a voice mail service is disclosed using a voice processing system having a communications link to one or more voice mail systems. A voice message for a subscriber to said one or more voice mail systems is received at said voice processing system which prompts, a determination as to the voice mail system on which said subscriber has a voice mailbox. The voice message is the transmitted to the voice mail system on which said subscriber has a voice mailbox. In the preferred embodiment, the communications link forms part of the Internet and received messages, are processed independently by two separate voice processing systems to provide redundancy.
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 February 17, 1997 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 17, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 17, 2019.
- 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.