Mobile instant messaging and presence service
CA 2445768 C · Owner: Salomaeki, Ari · Inventors: Salomaeki, Ari
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to mobile messaging and presence services. According to one aspect of the invention, a client device of the mobile messaging system adds a qualifier to a presence attribute the qualifier comprising one or more , parameters specifying the use of the attribute. A client device receiving a presence attribute processes the received presence attribute according to the qualifier parameters in said received attribute. Another aspect of the invention is the showing of how to assemble and store presence items with names, attributes and values in a single presence set within a role having an associated authorization group of members that have the right to subscribe to …
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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 May 10, 2002 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2024.
- 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.