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Expired Canadian patentCanada

Biaromatic compounds containing an adamantyl group in para position; pharmaceutical and cosmetic compositions containing them and use thereof

CA 2191790 C · Owner: Centre International De Recherches Dermatologiques Galderma · Inventors: Bernardon, Jean-Michel; Charpentier, Bruno

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

he invention concerns new bioaromatic compounds with the general formula (?): (see Fig I) and their use in pharmaceutical compositions designed for human or veterinary medicine applications (in particular for dermatology, rheumatism, respiratory cardiovascular and opthalmology disorders) or in cosmetics.

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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 29, 1996 and granted January 23, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 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 29, 1996
GrantedJanuary 23, 2001
Term endedNovember 29, 2016
Patent numberCA 2191790 C
Classification (IPC)C07C65/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedNov 29, 1996Patent grantedJan 23, 2001Term endedNov 29, 2016

Sources & verification

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