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Expired Canadian patentCanada

Method and apparatus for image capture of information on documents

CA 1301930 C · Owner: Durham, Thomas J. · Inventors: Durham, Thomas J.

CIPO record

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Abstract From the Canadian patent

IMPROVED METHOD AND APPARATUS FOR IMAGE CAPTURE OF INFORMATION ON DOCUMENTS", Abstract of the Disclosure Method and apparatus for enhancing the image capture of data, such as MICR characters and handwritten and printed information from the face of financial documents having background patterns and illustrations thereon. The documents are back lighted with sufficient illuminating intensity to wash out the less opaque patterns and illustrations so as to enhance the visibility and image capture of the pertinent data.

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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

  • Granted May 26, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 26, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 22, 1988
GrantedMay 26, 1992
Term endedMay 26, 2009
Patent numberCA 1301930 C
Classification (IPC)G06K9/00

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJune 22, 1988Patent grantedMay 26, 1992Term endedMay 26, 2009

Sources & verification

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