Electronic mail system having integrated voice messages
CA 2115822 C · Owner: Hyde-Thomson, Henry C. A. · Inventors: Hyde-Thomson, Henry C. A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a computer network having a plurality of interconnected terminals and a shared memory device for storing digital data a, message handling system for sending and retrieving both voice and text messages over the computer network. A voice message is input either through a phone associated with one of the computer terminals or via a remote phone. The voice message is converted into a digital voice file which is stored on the shared memory device corresponding to the intended recipient's mailbox. Thereby one mailbox can contain both voice and text messages. The same message handling mechanism is used for handling both voice and text messages. A list of the messages currently stored for each …
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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 February 16, 1994 and granted August 4, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 16, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 16, 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.