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Expired Canadian patentCanada

Method of treating conditions with estrogen agonists

CA 2198562 C · Owner: Thompson, David Duane · Inventors: Thompson, David Duane; Maclean, David Burton

CIPO record

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Abstract From the Canadian patent

Pharmaceutical compositions that comprise compounds of this formula, (see fig. I), (wherein A is CH2 or NR; R is H or alkyl; B D and E are each, CH or N; Y is a cyclic group such as phenyl; Z1 is a divalent group such as -O-CH2CH2-; G is an optionally substituted amino such as piperidino or pyrrolidino; and e is 0 1 or 2) are, useful for treating or preventing Alzheimer's disease premenstrual syndrome, perimenopausal syndrome a deficiency of, thrombomodulin, uterine fibrosis excessive myeloproxidase, activity, excessive thrombin autoimmune disease, reperfusion, damage of ischemic myocardium and insufficient testosterone.

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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 February 26, 1997 and granted September 10, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 26, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 26, 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.
FiledFebruary 26, 1997
GrantedSeptember 10, 2002
Term endedFebruary 26, 2017
Patent numberCA 2198562 C
Classification (IPC)A61K31/39 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedFeb 26, 1997Patent grantedSep 10, 2002Term endedFeb 26, 2017

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