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Expired Canadian patentCanada

Method and system for updating a remote database

CA 2472014 C · Owner: Haworth, William Frederick, Jr. · Inventors: Mcmillen, Bradley Thomas; Haworth, William Frederick, Jr.; Balogh, Aristotle Nicholas

CIPO record

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Abstract From the Canadian patent

A method and system for updating a remote database (210) over a network. A plurality of, periodic updates, called sendfiles (300-F) based on incremental changes to a , local database (200) are generated. Each of the periodic updates includes at least one transaction. An, initialization update called an initializing sendfile, including a version of the local database at, a start time is generated. Additionally an identifier associated with the , last periodic update generated before the start time and an identifier associated with the last transaction committed, prior to the start time are generated.

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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 1, 2002 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 1, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 1, 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.
FiledNovember 1, 2002
GrantedJuly 10, 2012
Term endedNovember 1, 2022
Patent numberCA 2472014 C
Classification (IPC)G06F1/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedNov 1, 2002Patent grantedJuly 10, 2012Term endedNov 1, 2022

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