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Expired Canadian patentCanada

Estrogen agonist/antagonists treatment of atherosclerosis

CA 2221091 C · Owner: Pfizer Limited · Inventors: Aiello, Robert Joseph

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

Disclosed is a pharmaceutical composition for treating atherosclerosis, independent of lipid lowering in mammals, including humans, in need of treatment by inhibiting progression of an atherogenic lesion or by stabilizing plaque. Such lesion progression inhibition or plaque stabilization is preferably achieved by directly inhibiting chemokine expression leading to excessive inflammatory cell recruitment by administering certain estrogen agonist/antagonists. The pharmaceutical composition comprises a therapeutically effective amount of at least one compound selected from the group consisting of 4-hydroxy tamoxifen raloxifene, toremifene, centchroman, idoxifene 6-(4-hydroxy-phenyl)-5-, …

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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 13, 1997 and granted May 28, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 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.
FiledNovember 13, 1997
GrantedMay 28, 2002
Term endedNovember 13, 2017
Patent numberCA 2221091 C
Classification (IPC)A61K31/44 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 13, 1997Patent grantedMay 28, 2002Term endedNov 13, 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.