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Expired Canadian patentCanada

Cobalt-chromium-molybdenum alloy stent and stent-graft

CA 2201542 C · Owner: Stinson, Jonathan S. · Inventors: Stinson, Jonathan S.

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 self-expanding stent(10) formed of helically wound and braided filaments (14) of wrought cobalt, chromium and molybdenum alloy containing less than about five weight percent nickel. The composition of the alloy from which one embodiment of the stent is formed is Co-26Cr-6Mo-1Si-1Fe-1Mn-1Ni.

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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 2, 1997 and granted August 14, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2019.
  • 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 2, 1997
GrantedAugust 14, 2001
Term endedApril 2, 2017
Patent numberCA 2201542 C
Classification (IPC)A61L27/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedApril 2, 1997Patent grantedAug 14, 2001Term endedApril 2, 2017

Sources & verification

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