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Expired Canadian patentCanada

Luminaire

CA 1072932 A · Owner: Canadian General Electric Company Limited · Inventors: Puurits, Leonhard

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

Case 2444, ABSTRACT OF THE DISCLOSURE, There is particularly taught a pedestrian cross walk sign and combined luminaire adapted for rigid suspension above the cross walk. The housing of the luminaire comprises a folded sheet metal structure including end walls and a top wall. The end walls are interconnected by a torsion tube. A slip fitter is located on the top wall and is supported from the torsion tube by a bracket.

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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 March 4, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 4, 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—
GrantedMarch 4, 1980
Term endedMarch 4, 1997
Patent numberCA 1072932 A
Classification (IPC)F21V21/10 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMarch 4, 1980Term endedMarch 4, 1997

Sources & verification

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