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Expired Canadian patentCanada

Fiber optic cable and furcation module

CA 2537780 C · Owner: Adc Telecommunications, Inc. · Inventors: Zimmel, Steven C.

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

An optical fiber cable assembly comprising an optical fiber slidably enclosed within a hollow tubing, both the fiber and the tubing having corresponding first and second ends. The cable is terminated with the first and second ends of the tubing and the fiber constrained with respect to each other such that fiber and the tubing are approximately the same length when the cable is at a first temperature. The tubing is made of a material which contracts more than the optical fiber when the cable is exposed to temperatures below the first temperature, such that the fiber is longer than the tubing and excess fiber length is formed. An intermediate portion of the tubing permits the excess …

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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 September 1, 2004 and granted November 5, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 1, 2004
GrantedNovember 5, 2013
Term endedSeptember 1, 2024
Patent numberCA 2537780 C
Classification (IPC)G02B6/44

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 1, 2004Patent grantedNov 5, 2013Term endedSep 1, 2024

Sources & verification

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