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Expired Canadian patentCanada

Method and system for synchronizing multiple user revisions to a shared object

CA 2528070 C · Owner: Microsoft Corporation · Inventors: Rasmussen, David; Clarke, Simon P.; Kofman, Igor

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Many different users may access, revise and update the same shared object simultaneously through several different transports. Revisions to the shared object are automatically synchronized such that all users can view the revisions to the shared object. Conflicting revisions are reconciled and merged into a current version of the shared object. A client may request the current version of the shared object from a store when the current version of the shared object is not available from the store. The current version of the shared object is synchronized with the client when the store receives the current version of the share object.

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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 November 28, 2005 and granted December 29, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 28, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 28, 2005
GrantedDecember 29, 2015
Term endedNovember 28, 2025
Patent numberCA 2528070 C
Classification (IPC)G06F15/16

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 28, 2005Patent grantedDec 29, 2015Term endedNov 28, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.