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Expired Canadian patentCanada

Reflector for use in sunlamps or the like

CA 1074382 A · Owner: Wolff, Friedrich · Inventors: Wolff, Friedrich

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A trough-shaped reflector for use with rod-shaped sources of ultraviolet radiation in sunlamps has a rear wall behind the source and two side walls which flank the source and define therewith two narrow gaps. The front portions of the side walls are parallel to each other and extend forwardly beyond the source. The front surface o the rear wall has two concave portions which reflect rays into the respective gaps and the, rear portions of the side walls have parallel concave inner surfaces. The reflector can be made of a rectangular blank of sheet metal by imparting to the median portion of the blank a semicylindrical shape, by notching the outer side of the median portion midway between the …

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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 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 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 25, 1980
Term endedMarch 25, 1997
Patent numberCA 1074382 A
Classification (IPC)A61N5/06 +2 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMarch 25, 1980Term endedMarch 25, 1997

Sources & verification

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