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Expired Canadian patentCanada

Triazole antifungal agents

CA 2200169 C · Owner: Bell, Andrew Simon · Inventors: Stephenson, Peter Thomas; Bell, Andrew Simon

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

An antifungal compound of formula (1): (see fig.I), or a pharmaceutically acceptable salt thereof or a pharmaceutically acceptable, solvate of either entity wherein X is CH or N; R1 is phenyl subsituted with 1 to 3 substituents each independently selected from halo and CF3; R2 is (hydroxy)C1-C4alkyl CONH2, S(O)m(C1-C4 alkyl), Ar or Het; m is 1 or 2; Ar is phenyl optionally monosubstituted with halo or CF3; and Het is a C-linked 6-membered nitrogen-containing aromatic heterocyclic group containing 1 or 2 nitrogen atoms or a C- or, N-linked 5-membered nitrogen-containing aromatic heterocyclic group containing from 2 to 4 nitrogen atoms, wherein either of said heterocyclic groups is optionally …

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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 March 17, 1997 and granted April 3, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 17, 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.
FiledMarch 17, 1997
GrantedApril 3, 2001
Term endedMarch 17, 2017
Patent numberCA 2200169 C
Classification (IPC)C07D403/10 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 17, 1997Patent grantedApril 3, 2001Term endedMarch 17, 2017

Sources & verification

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