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Expired Canadian patentCanada

Method and composition for treating hyperproliferative skin diseases using 6-aminopurine cytokinins

CA 2107896 C · Owner: Jensen, Peter K. A. · Inventors: Jensen, Peter K. A.; Bjerring, Peter; Bolund, Lars

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Abstract From the Canadian patent

It has been discovered that 6-(substituted amino)purine cytokinins such as , kinetin, induce differentiation and consequent-, ly reduce or eliminate the abnormally high rate of proliferation of , hyperproliferating cells associated with hyperproliferative skin diseases, such as psoriasis. Thus, the present invention provides methods and compositions for treating hyperproliferative skin diseases in mammals, particularly such diseases associated with hyperproliferating epidermal cells in humans by administering, to the hyperproliferating cells associated with such a disease in the skin of , a mammal suffering therefrom a differentiation-indu-, cing effective amount of a 6-(substituted …

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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 May 16, 1991 and granted July 30, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 16, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 16, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 16, 1991
GrantedJuly 30, 2002
Term endedMay 16, 2011
Patent numberCA 2107896 C
Classification (IPC)A61K31/52

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedMay 16, 1991Patent grantedJuly 30, 2002Term endedMay 16, 2011

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