Method and apparatus for storing and managing contacts in a distributed collaboration system
CA 2452893 C · Owner: Evdokimov, Alexei · Inventors: Sarichev, Nikita V.; Evdokimov, Alexei
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a distributed collaboration system, each user stores all contact information in a local contact store. Each subsystem that maintains contact information such as a shared space or contact list and thus serves as. a "source" for contact information would then store only information such as a URL, that identifies a contact in the contact store. In order to insure that communications with a contact are not lost by a failure to receive contact communication information the local contact stores are updated by means of bi-directional subscriptions. In particular when information for a contact is added to a user's local contact store a subscription message is sent to that contact. The …
Read the whole patent
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 December 11, 2003 and granted February 18, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2025.
- 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.