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Expired Canadian patentCanada

Photomeasuring device for computer storage of photographic and other materials

CA 1059633 A · Owner: Object Recognition Systems · Inventors: Lovitz, Alfred (Jr.); Auerbach, Sidney

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A light image of an object to be recognized is scanned in a series of narrow elongated laterally displaced parallel areas. Photoelectric means responds successively to the overall light from successive areas and produces corresponding signals. These signals are converted to corresponding digital values. The resultant digital representation of the object may be compared by a computer with digital representations of other objects obtained in the same manner to determine whether they are alike or unlike.

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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 July 31, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 31, 1996.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJuly 31, 1979
Term endedJuly 31, 1996
Patent numberCA 1059633 A
Classification (IPC)G06K9/20

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJuly 31, 1979Term endedJuly 31, 1996

Sources & verification

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