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Expired Canadian patentCanada

Luminaire reflector

CA 1134792 A · Owner: Gte Products Corporation · Inventors: Labouliere, Elzear R.; De Vos, Hendrik A.J.

CIPO record

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

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Abstract From the Canadian patent

21,893, LUMINAIRE REFLECTOR, ABSTRACT A multi-faceted, segmented reflector for use with a direct lighting luminaire to provide a square pattern of illumination on a planar field located below the luminaire. Each segment is formed as a result of a series of bending operations to thus define a plurality (e.g. six) of the planar facets thereon. The surfaces of the facets are specular reflective to provide greater control of incident light from the luminaire's light source (e.g. HID lamp). - 13 -

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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 November 2, 1982. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 2, 1999.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 24, 1980
GrantedNovember 2, 1982
Term endedNovember 2, 1999
Patent numberCA 1134792 A
Classification (IPC)F21V7/00 +1 more

Timeline

Timeline From CIPO dates

1981198319851987198919911993199519971999Application filedMarch 24, 1980Patent grantedNov 2, 1982Term endedNov 2, 1999

Sources & verification

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