Communicating network resource locators to customer premises equipment using modified ring access
CA 2242958 C · Owner: Michaud, Bertrand Marc-Andre · Inventors: Rohs, Charles Gerald; Cramer, Seth Whitney; Michaud, Bertrand Marc-Andre
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method and system for downloading a file to a subscriber telephone. The system includes a modified ring access server for producing a modified ring access message including a first network resource locator a central, office service unit for producing a modified ring access connection message including the first network resource locator, in response to the modified ring access message and for representing the modified ring access connection message by an FSK message, a central office switch operable to establish a connection to the subscriber telephone in response to the modified ring access connection message and for transmitting the FSK message to the subscriber telephone, a first …
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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 July 6, 1998 and granted December 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 6, 2020.
- 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.