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Expired Canadian patentCanada

Method and device for obtaining numerical coordinates of a point or a set of points

CA 1249717 A · Owner: Vcom S.A. · Inventors: Jaluzot, Yves

CIPO record

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

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Abstract From the Canadian patent

A device for obtaining numerical coordinates of a point or a set of points comprises two stretched strips having a common end attached to a stylus which is placed on a point or moved over a set of points. Each of the other ends of each strip is supplied from a strip reserve consisting of pulleys connected to a restoring spring for applying tension to the strips. Variations in length of the strips are measured in discrete values by a mechanism associated with a computer for correcting the effective length of each strip.

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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 February 7, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 7, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 8, 1984
GrantedFebruary 7, 1989
Term endedFebruary 7, 2006
Patent numberCA 1249717 A
Classification (IPC)G01B3/30 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedNov 8, 1984Patent grantedFeb 7, 1989Term endedFeb 7, 2006

Sources & verification

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