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Expired Canadian patentCanada

Multiport illuminator for macro-fibers

CA 2223477 C · Owner: Forkner, John F. · Inventors: Rykowski, Ronald F.; Riser, Andrew P.; Forkner, John F.

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

The inventive system, which is used in transmitting illumination from a central source to a variety of remote locations efficiently couples the light , originating from an arc lamp or similar source, into a multiplicity of flexible macroscopic fibers. The combination of the several elements of the inventive system results in a very efficient transfer of the energy of the light source to the fibers. The system also provides a very flexible mechanical means for distributing the energy to the fibers and to the remote locations at which the light is used.

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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 May 31, 1996 and granted September 19, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 31, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 31, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 31, 1996
GrantedSeptember 19, 2000
Term endedMay 31, 2016
Patent numberCA 2223477 C
Classification (IPC)F21V8/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMay 31, 1996Patent grantedSep 19, 2000Term endedMay 31, 2016

Sources & verification

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