Patent Yard Sign in
Expired Canadian patentCanada

Device for generating an optical collimating beam

CA 1304575 C · Owner: Renner, Werner · Inventors: Renner, Werner; Stana, Hans

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

The invention is directed to a device for generating an optical collimating beam having a defined angle with respect to a base when mounted thereon even in the presence of extreme mechanical and thermal loads. The device can be used for testing long guideways on machine tools for example. The, device includes a housing wherein a collimator is mounted in a form-tight manner for imaging a collimating mark out to infinity. The collimator is configured as a mirror system and includes several components connected tightly to each other. These components define a chamber filled with a gaseous medium and through which the imaging beam path extends. The collimator functions without problems even in …

Read the whole patent

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 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 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.
FiledAugust 31, 1989
GrantedJuly 7, 1992
Term endedJuly 7, 2009
Patent numberCA 1304575 C
Classification (IPC)G02B27/30 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedAug 31, 1989Patent grantedJuly 7, 1992Term endedJuly 7, 2009

Sources & verification

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