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Expired Canadian patentCanada

Optical fiber light emitting apparatus

CA 2121653 C · Owner: Motorola, Inc. · Inventors: Kaschke, Kevin D.

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

An optical fiber light emitting apparatus (200) comprises at least one optical fiber (201) arranged in a repeating, recurrent pattern extending substantially throughout a predetermined area (206). The optical fiber (201) has a plurality of locations along the length thereof permitting light entering at least one end of the optical fiber (201) for transmission therein to be selectively emitted by the optical fiber (201) at the plurality of locations (210) for producing substantially uniform illumination substantially throughout the predetermined area (206). The repeating recurrent, pattern may form a spiral or serpentine pattern for example. The repeating, recurrent pattern eliminates 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

  • Filed April 19, 1994 and granted May 13, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 19, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 19, 1994
GrantedMay 13, 1997
Term endedApril 19, 2014
Patent numberCA 2121653 C
Classification (IPC)F21V8/00 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedApril 19, 1994Patent grantedMay 13, 1997Term endedApril 19, 2014

Sources & verification

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