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Expired Canadian patentCanada

Method of adjusting an optical element of a gas discharge laser

CA 1081353 A · Owner: N.V. Philips Gloeilampenfabrieken · Inventors: Van Kleef, Johannes H.K.C.; Van Den Brink, Hans G.; Van Hoof, Albertus J.F.M.

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

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Abstract From the Canadian patent

If upon adjusting an optical element of a gas discharge laser, which element is provided at one end of a tubular metal support, which support is secured to the laser tube, a tubular section of the support is drawn beyond the yield point of the metal of which the tubular section consists during or after adjustment by deformation of the tubular section throughout the circumference, an accurate adjustment takes place in a simple manner in which no stresses remain in the material which may maladjust the laser. The tubular section preferably consists of copper or nickel. - 9 -

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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 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 1997.
  • 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 8, 1980
Term endedJuly 8, 1997
Patent numberCA 1081353 A
Classification (IPC)H01S3/02 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJuly 8, 1980Term endedJuly 8, 1997

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