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Expired Canadian patentCanada

Process for fabricating a sheated high critical temperature superconductor wire

CA 2125446 C · Owner: Alcatel · Inventors: Legat, Denis; Duperray, Gerard

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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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 June 8, 1994 and granted February 15, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 8, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 8, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 8, 1994
GrantedFebruary 15, 2000
Term endedJune 8, 2014
Patent numberCA 2125446 C
Classification (IPC)H01B13/00 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJune 8, 1994Patent grantedFeb 15, 2000Term endedJune 8, 2014

Sources & verification

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