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Expired Canadian patentCanada

Method for treatment of skin lesions associated with cutaneous cell-proliferative disorders

CA 2190564 C · Owner: Binder, William J. · Inventors: Binder, William J.

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

The invention is a method for treatment of cutaneous cell-proliferativedisorders. More specifically the method of the invention is useful in mitigating and inducing remission of lesions associated with such disorders and in controlling related symptoms of the disorders (such as scaling and itching). According to the method of the invention an, invertebrate neurotoxin is administered to the skin of the host at or near the site of a lesion. The preferred neurotoxin for use in the method of the invention is Botulinum toxin, particularly Botulinum toxin A.

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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 November 18, 1996 and granted January 22, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 18, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2018.
  • 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 18, 1996
GrantedJanuary 22, 2002
Term endedNovember 18, 2016
Patent numberCA 2190564 C
Classification (IPC)A61K38/16

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedNov 18, 1996Patent grantedJan 22, 2002Term endedNov 18, 2016

Sources & verification

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