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Expired Canadian patentCanada

Tip processing method and tip processing apparatus for jacketed optical fibers

CA 2065749 C · Owner: The Furukawa Electric Co. Ltd. · Inventors: Sasaki, Koji; Fukuoka, Satoshi; Yamaguchi, Shizuka

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

A tip processing apparatus is equipped with a fiber holding unit for extending the tip of the jacketed optical fiber comprising at least one optical fiber provided with a jacket and holding the jacketed optical fiber in place; a jacket removing unit for removing a desired length of the jacket leaving the, jacket on the tip of the jacketed optical fiber; a cleaning unit for cleaning the optical fiber exposed by the jacket removal carried out in the jacket removing unit; and a cutting unit for performing cut processing thereby to trim the optical fiber cleaned by the cleaning unit. A tip processing method wherein a portion in, which the jacket is removed by a desired length is, formed on a …

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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 10, 1992 and granted March 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 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 10, 1992
GrantedMarch 5, 2002
Term endedApril 10, 2012
Patent numberCA 2065749 C
Classification (IPC)G02B6/25 +1 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedApril 10, 1992Patent grantedMarch 5, 2002Term endedApril 10, 2012

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