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Expired Canadian patentCanada

A method of controlling a multi-purpose re-configurable information query computer system

CA 2561887 C · Owner: Slaw, David · Inventors: Whitsett, Rodney B.; Quiring, Kevin N.; Kornfeld, Alyse S.

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Abstract From the Canadian patent

A method of controlling a multi-purpose re-configurable information query computer system arranged to participate in an interactive session for defining a remote user information request, to retrieve the required information and to send the same in a response via a selected communications channel to the remote user, is described. The method comprises defining a plurality of optimal user-interaction procedures which specify the manner in which the system will interact with the user, each optimal user interaction procedure being correlated with a predetermined user-interaction strategy wherein each , user interaction procedure has at least one associated user query handling technique; …

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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 29, 2005 and granted November 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 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.
FiledMarch 29, 2005
GrantedNovember 24, 2015
Term endedMarch 29, 2025
Patent numberCA 2561887 C
Classification (IPC)—

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2006200820102012201420162018202020222024Application filedMarch 29, 2005Patent grantedNov 24, 2015Term endedMarch 29, 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.