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Expired Canadian patentCanada

Cardiovascular composition containing benzenediol derivatives

CA 1207237 A · Owner: Fisons Plc · Inventors: Olejnik, Orest

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

There is described a mixture of 4-2-(6-(2-phenylethylamino)hexylamino)ethyl-1,2-benzenediol or, 4-2-(6-(2-chlorophenyl)ethylamino)hexylamino)ethyl-1,2benzenediol or a pharmaceutically acceptable acid addition salt of either thereof or as active ingredient and a, physiologically acceptable acid. There is also described a method of preparing a solid form of the active ingredient, which comprises freeze drying an aqueous solution of the mixture and a freeze, dried composition containing the active ingredient prepared by the method. The mixtures are useful as pharmaceuticals e.g. in, the treatment of cardiovascular conditions.

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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 July 8, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 8, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 18, 1984
GrantedJuly 8, 1986
Term endedJuly 8, 2003
Patent numberCA 1207237 A
Classification (IPC)A61K31/13

Timeline

Timeline From CIPO dates

1985198719891991199319951997199920012003Application filedJan 18, 1984Patent grantedJuly 8, 1986Term endedJuly 8, 2003

Sources & verification

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