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Expired Canadian patentCanada

Platinum coordination compounds

CA 1308730 C · Owner: Matthey (Johnson) Public Limited Company · Inventors: Haines, Alan H.; Morley, Christopher

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

Coordination compounds of platinum(II) with 4,5-bis(aminomethyl)-1,- 3-dioxolane, intended for use in the treatment of cancer. The compounds may exist as monomers or as linear or cyclic polymers.

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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 October 13, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 13, 2009.
  • 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, 1986
GrantedOctober 13, 1992
Term endedOctober 13, 2009
Patent numberCA 1308730 C
Classification (IPC)C07F15/00 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedOct 16, 1986Patent grantedOct 13, 1992Term endedOct 13, 2009

Sources & verification

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