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Expired Canadian patentCanada

Adaptive technology for automatic document analysis

CA 2393329 C · Owner: Charpentier, Didier · Inventors: Charpentier, Didier

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention concerns a device for automatic document reading comprising an image sensor for imaging the document and an output for data from said document and data concerning meanings of at least part of said scanned data. It further comprises means for detecting at least a scanning guide and means associating at least a scanned information with an information of meaning using said scanning guide.

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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 December 4, 2000 and granted March 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 4, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 4, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 4, 2000
GrantedMarch 8, 2011
Term endedDecember 4, 2020
Patent numberCA 2393329 C
Classification (IPC)G06K9/20

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedDec 4, 2000Patent grantedMarch 8, 2011Term endedDec 4, 2020

Sources & verification

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