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Expired Canadian patentCanada

Stable soluble 1,2-diaminocyclohexane platinum complexes

CA 1261863 A · Owner: Andrulis Research Corporation · Inventors: Schwartz, Paul; Mcgrath, Kenneth J.; Gill, Devinder S.

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Abstract From the Canadian patent

STABLE SOLUBLE 1,2-DIAMINOCYCLOHEXANE PLATINUM COMPLEXES", ABSTRACT OF THE DISCLOSURE Platinum complexes of the formula, wherein Z is -CO- or a slngle bond and R is -COOH or -SO3H and the pharmaceutically acceptable salts thereof with bases, are stable readily water-soluble pharmaceutically active compounds having antitumor, anti-inflammatory and trypanocidal activities.

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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

  • Granted September 26, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 26, 2006.
  • 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 10, 1986
GrantedSeptember 26, 1989
Term endedSeptember 26, 2006
Patent numberCA 1261863 A
Classification (IPC)C07F15/00 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedNov 10, 1986Patent grantedSep 26, 1989Term endedSep 26, 2006

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