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Expired Canadian patentCanada

Character recognition system and method

CA 2421673 C · Owner: Imds Software Inc. · Inventors: Polonowski, Jean-Pierre

CIPO record

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Abstract From the Canadian patent

A system and method for translating a written document into a computer readable document by recognizing the character written on the document aim at recognizing typed or printed especially hand-printed or handwritten characters in the various fields of a form. Providing a pixel representation of the written document the method allows translating a written document into a computer readable document by i) identifying at least one field into the pixel representation of the document; ii) segmenting each field so as to yield at least one segmented symbol; iii) applying a character recognition method on each segmented symbol; and iii) assigning a computer-readable code to each recognized …

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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 11, 2003 and granted June 3, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 11, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2025.
  • 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 11, 2003
GrantedJune 3, 2014
Term endedMarch 11, 2023
Patent numberCA 2421673 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 11, 2003Patent grantedJune 3, 2014Term endedMarch 11, 2023

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