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Expired Canadian patentCanada

Process for the manufacture of bis-triazole compounds and intermediates useful in the manufacture thereof having antifungal activity

CA 2185654 C · Owner: Zinghini, Salvatore · Inventors: Braganza, John Frederick; Zinghini, Salvatore; Karimian, Khashayar

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 process to prepare a compound of formula (I) (I), wherein Y and Z can be identical or different and represent a halogene. The bis-triazole compounds of formula (I) and intermediates have antifungal activity.

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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 July 17, 1996 and granted February 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 17, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 17, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 17, 1996
GrantedFebruary 23, 1999
Term endedJuly 17, 2016
Patent numberCA 2185654 C
Classification (IPC)C07D249/08 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 17, 1996Patent grantedFeb 23, 1999Term endedJuly 17, 2016

Sources & verification

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