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Expired Canadian patentCanada

Integrated construction of a large number of optical conductor cables

CA 1259215 A · Owner: Mori, Kei · Inventors: Mori, Kei

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Abstract From the Canadian patent

A large number of optical conductor cables are integrated and connected to a single optical conducting rod for use in transmitting light energy to a distant place through the optical conducting rod. The integrated construction is comprised of a large number of optical conductor cables and a large number of optical fibers, the bundle of which is unbound at one end of each optical conductor cable. A cladding layer of each optical fiber being cut off and the edge surface thereof being arranged on the same plane and then unitarily bound thereon by the use of an adhesive or the like. The bound portion of each optical fiber being approximately in the shape of a head-cut circular cone, and each …

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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 September 12, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 12, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 22, 1984
GrantedSeptember 12, 1989
Term endedSeptember 12, 2006
Patent numberCA 1259215 A
Classification (IPC)G02B6/24 +2 more

Timeline

Timeline From CIPO dates

19851988199119941997200020032006Application filedOct 22, 1984Patent grantedSep 12, 1989Term endedSep 12, 2006

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