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Expired Canadian patentCanada

Treatment of male hormone related diseases by cyclodextrins and their derivatives

CA 2027736 C · Owner: Kabushikikaisha Ueno Seiyaku Oyo Kenkyujo · Inventors: Ueno, Ryuji

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The present invention is directed to a pharmaceutical composition for the treatment of diseases having an etiology based on or accompanied by excess male hormone. The pharmaceutical composition comprises a cyclodextrin or derivative thereof in association with a pharmaceutically acceptable carrier, diluent or excipient.

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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 October 16, 1990 and granted March 21, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 16, 1990
GrantedMarch 21, 2000
Term endedOctober 16, 2010
Patent numberCA 2027736 C
Classification (IPC)A61K31/71

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedOct 16, 1990Patent grantedMarch 21, 2000Term endedOct 16, 2010

Sources & verification

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