Two-way wireless messaging system with flexible messaging
CA 2209090 C · Owner: Woo, Thomas Yat Chung · Inventors: Sabnani, Krishan Kumar; La Porta, Thomas F.; Woo, Thomas Yat Chung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system and method for two-way wireless messaging is disclosed. A plurality of messages are stored within a user agent of the two-way messaging network. The messages correspond to those selected by a subscriber of a two-way messagingservice. The messages are encoded and include control information. An originating message transfer code is transmitted from the two-way messaging device of the subscriber to the two-way messaging network. The originating message transfer code includes among other things a message number and a modifier that specifies customizations that are to be applied to a message. The originating message code is then expanded within the user agent, and the expanded message …
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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 June 25, 1997 and granted December 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 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.