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Expired Canadian patentCanada

Forward illumination light system for vehicles

CA 2007150 C · Owner: Finch, William Walter · Inventors: Hansler, Richard Lowell; Davenport, John Martin; Finch, William Walter

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 lighting subsystem is disclosed that uses optical devices to alter, the actual or apparent optical position of the ends of optical fibers coupled to a high intensity light source so as to provide all of the forward illumination needs for a vehicle. In one embodiment, optical wedges are interposed between a rectangular array of optical fibers and an array of lens elements mountable on the front of a vehicle from which the forward illumination is transmitted therefrom. The imposition of the optical devices alters the actual or apparent optical position of the fibers relative to the lenses and thereby changes the forward illumination from its low to its high beam pattern, to a fog beam …

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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

  • Filed January 4, 1990 and granted April 7, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 4, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 4, 1990
GrantedApril 7, 1998
Term endedJanuary 4, 2010
Patent numberCA 2007150 C
Classification (IPC)F21S41/63 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedJan 4, 1990Patent grantedApril 7, 1998Term endedJan 4, 2010

Sources & verification

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