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Expired Canadian patentCanada

Method and apparatus for detecting characteristic features of surfaces

CA 1068005 A · Owner: Bendix Corporation (The) · Inventors: Sanford, Norman R.

CIPO record

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Abstract From the Canadian patent

Abstract of the Disclosure, A novel system is provided for detecting the presence of a characteristic feature on an illuminated surface of an object when used in conjunction with known electro-optical systems for determining the position of the centroid of the outline of the object with relation to the supporting surface and the rotation of the object relative to the rotational orientation of a test part. The surface is illuminated at an angle that enhances the contrast of the characteristic feature while using a vidicon-type image converter tube which scans the field which includes the object. The location, with respect to the centroid of a circular window area encompassing the …

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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 December 11, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 11, 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—
GrantedDecember 11, 1979
Term endedDecember 11, 1996
Patent numberCA 1068005 A
Classification (IPC)B25J19/02 +1 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedDec 11, 1979Term endedDec 11, 1996

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