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Expired Canadian patentCanada

Method for coating fiber waveguides

CA 1165075 A · Owner: Western Electric Company, Incorporated · Inventors: Hart, Arthur C. Jr.; Blyler, Lee L. Jr.; Aloisio, Charles J. Jr.

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

Abstract of the Disclosure, The specification describes techniques for coating fiber waveguides by passing the fiber through a reservoir of coating material while preventing the gross accumulation of bubbles in the reservoir. Preventing accumulation of bubbles improves coating concentricity and quality.

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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 April 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 10, 2001.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1982
GrantedApril 10, 1984
Term endedApril 10, 2001
Patent numberCA 1165075 A
Classification (IPC)B05D1/18 +2 more

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedMarch 11, 1982Patent grantedApril 10, 1984Term endedApril 10, 2001

Sources & verification

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