System and method for integrating audio and visual messaging
CA 2363420 C · Owner: Helferich, Richard J. · Inventors: Helferich, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a communication system for integrating audio and visual messaging. The communication system includes a mobile communication device (140, 145) for receiving visual messages and for transmitting voice messages to a recipient (105), a base station system (125 130) in , communication with the mobile communication device (140 145), an electronic , mail gateway (117 115) for delivering visual messages to the base station system (125, 130) for transmission to the mobile communication device (140 145), and an integrated mail gateway (150) for receiving from the base station (125, 130) a voice message and addressing information that were both transmitted from the …
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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 March 29, 2000 and granted June 14, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 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.