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Expired Canadian patentCanada

Uses for corticotropin releasing factor atagonists

CA 2189830 C · Owner: Pfizer Limited · Inventors: Fossa, Anthony Andrea; Chen, Yuhpyng Liang

CIPO record

Overview

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

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Abstract From the Canadian patent

Disclosed is a pharmaceutical composition for treating, preventing or inhibiting cardiovascular or heart related diseases, comprising (a) a compound of the formula or , I II, or a pharmaceutically acceptable salt thereof wherein A is N or CR7 (in which R7 is H alkyl, halo or the, like), B is -NR1R2 -CR1 R2R11 or the like (in which R1 is H or alkyl, R2 is alkyl, aryl, arylalkyl cycloalkyl or the like, and R11 is H, OH or the like) D is N, -CR10 (in which R10 is, H, alkyl halo or the like ), C=O, -C=NH, etc.), E is -CR4 (in which R4 is H, alkyl, halo etc.), N, -NR6 or -CR4R6 (in which R4 is H, alkyl, halo, etc. and R6 is H or alkyl) Y is N or, CH, Z is O, S, NH, ect. R3 is H alkyl, halo, etc. …

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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 November 7, 1996 and granted February 13, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 7, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 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.
FiledNovember 7, 1996
GrantedFebruary 13, 2001
Term endedNovember 7, 2016
Patent numberCA 2189830 C
Classification (IPC)A61K31/50 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedNov 7, 1996Patent grantedFeb 13, 2001Term endedNov 7, 2016

Sources & verification

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