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Expired Canadian patentCanada

Laser optical element mounting arrangement and method

CA 1298642 C · Owner: Whitehouse, David R. · Inventors: Whitehouse, David R.

CIPO record

Overview

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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 laser optical element mounting arrangement and method are disclosed wherein a laser optical element is mounted to a laser mounting support member. The mounting support member has a smooth surface to which a surface of the optical element is engaged to form a vacuum seal between the optical element and the support member. The seal is accomplished with the application of only light pressure contact between the respective surfaces at ambient temperature and without the need for a sealant.

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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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 11, 1987
GrantedApril 7, 1992
Term endedApril 7, 2009
Patent numberCA 1298642 C
Classification (IPC)H01S3/08 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedDec 11, 1987Patent grantedApril 7, 1992Term endedApril 7, 2009

Sources & verification

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