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Expired Canadian patentCanada

Aligning

CA 1320828 C · Owner: Mpm Corporation · Inventors: Freeman, Gary T.

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

An aligning system includes an object to be acted upon at predetermined locations, such as a circuit board to receive solder paste. There is a device such as a, stencil, characterized by the pattern for acting upon the object. A video probe is arranged to look at both the device and the object for providing image signals representative of both. A comparator compares the image signals to provide an error signal representative of misalignment between the device and object. A positioner responsive to the error signal relatively positions the device and object to reduce the error. An operator causes the device to operate upon the object at the predetermined locations.

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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 August 3, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 3, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 17, 1989
GrantedAugust 3, 1993
Term endedAugust 3, 2010
Patent numberCA 1320828 C
Classification (IPC)G01B5/24 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedApril 17, 1989Patent grantedAug 3, 1993Term endedAug 3, 2010

Sources & verification

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