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Expired Canadian patentCanada

Fiber optic cable having spliceless branch and method of making

CA 2065090 C · Owner: Edmundson, Gary Wayne · Inventors: Edmundson, Gary Wayne

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 spliceless optical fiber cable has a main distribution cable having a plurality of optical fibers disposed therein and at least one stub or drop cable extending from the distribution cable at one or more branch points. The stub or drop cables are configured with the distribution cable in a manner such that no splices are required. At each branch point an optical fiber, branch module is utilized for protecting the optical fibers from moisture and mechanical damage, providing a strong anchoring point for the stub or drop cable, and insuring that the minimum bend radius is not violated. The spliceless optical fiber cable is made by accessing the specified optical fibers at a disconnect point …

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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 3, 1992 and granted February 24, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 3, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 3, 2014.
  • 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 3, 1992
GrantedFebruary 24, 1998
Term endedApril 3, 2012
Patent numberCA 2065090 C
Classification (IPC)G02B6/44 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedApril 3, 1992Patent grantedFeb 24, 1998Term endedApril 3, 2012

Sources & verification

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