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Expired Canadian patentCanada

Topical preparation

CA 1332569 C · Owner: Leo Pharmaceutical Products Ltd. A/S (Lovens Kemiske Fabrik Produktionsa Ktieselskab) · Inventors: Godtfredsen, Wagn Ole

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

Novel topical composition are provided herein. These compositions are for application to mammalian skin for increasing the rate of terminal hair growth in mammalian species. The compositions include an effective amount of a compound of Formula I:, (I), in which the R1-substituted cyano-guanidyl radical is placed in the 3- or 4-position of the pyridine ring in which R1 stands for, a straight or branched saturated or unsaturated, aliphatic, hydrocarbon radical having from 1 to 8 carbon atoms a cycloalkyl, or cycloalkenyl radical having from 3 to 7 carbon atoms or an, aryl or an aralkyl radical, and in which R2 stands for hydrogen halogen, hydroxy, lower alkyl or alkoxy radicals or of any of, …

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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 18, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 18, 2011.
  • 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 20, 1989
GrantedOctober 18, 1994
Term endedOctober 18, 2011
Patent numberCA 1332569 C
Classification (IPC)A61K8/49 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJan 20, 1989Patent grantedOct 18, 1994Term endedOct 18, 2011

Sources & verification

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