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Expired Canadian patentCanada

Method and apparatus for recoating optical waveguide fibers

CA 1302948 C · Owner: Young, Donald Ray · Inventors: Amos, Lynn Granville; Young, Donald Ray; Saikkonen, Stuart Lyle

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 split recoating mold for use in recoating optical waveguide fibers with a UV-curable resin is provided wherein: 1) the mold, when closed forms a, cavity for receiving the portion of the fiber which is to be recoated, the cross-sectional size and shape of the cavity being essentially equal to the cross-sectional size and shape of the original fiber; 2) the mold includes an injection port for introducing a UV-curable resin into the cavity; and 3) the mold includes means for introducing ultraviolet light into the cavity so that resin located in regions of the cavity remote from the injection port will cure prior to resin located in regions of the cavity near the injection port.

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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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 2009.
  • 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, 1986
GrantedJune 9, 1992
Term endedJune 9, 2009
Patent numberCA 1302948 C
Classification (IPC)B05D3/06 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedApril 10, 1986Patent grantedJune 9, 1992Term endedJune 9, 2009

Sources & verification

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