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Expired Canadian patentCanada

System and method of gesture feature recognition

CA 2507290 C · Owner: Wang, Yu-Hong · Inventors: Bernardin, Laurent; Wang, Yu-Hong

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Abstract From the Canadian patent

A gesture feature recognition system and method is provided. The gesture feature recognition system comprises an input/output component for recording pen strokes and for displaying them as strokes on a display device a repository for storing gesture recognition data and a recognizer component for analyzing the strokes using the gesture recognition data. The method comprises the steps of receiving input data that represents the stroke sequence of handwritten characters and symbols comparing the input data to a predefined symbol set stored in a repository identifying characters and symbols present in the input data and identifying the location of relevant features of the characters and …

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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 May 13, 2005 and granted February 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 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.
FiledMay 13, 2005
GrantedFebruary 5, 2013
Term endedMay 13, 2025
Patent numberCA 2507290 C
Classification (IPC)—

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2006200820102012201420162018202020222024Application filedMay 13, 2005Patent grantedFeb 5, 2013Term endedMay 13, 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.