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Expired Canadian patentCanada

Computer searching with associations

CA 2462415 C · Owner: Marcjan, Cezary · Inventors: Chaudhuri, Surajit; Marcjan, Cezary; Cheng, Lili

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

A search of an index database or another search method is conducted to identify as a preliminary results listing one or more selected computer objects having selected identifying information stored in an index database. In addition one or more selected computer objects of the preliminary search results are correlated with one or more other computer objects that have associations with the selected computer objects of the preliminary search results. Integrated search results are then returned and include the preliminary search results and one or more other computer objects that have associations with the selected computer objects of the preliminary search results. The associations may be …

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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 March 30, 2004 and granted February 4, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 30, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 30, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 30, 2004
GrantedFebruary 4, 2014
Term endedMarch 30, 2024
Patent numberCA 2462415 C
Classification (IPC)G06F17/30

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 30, 2004Patent grantedFeb 4, 2014Term endedMarch 30, 2024

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