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Expired Canadian patentCanada

Physiological means of enhancing transdermal delivery of drugs

CA 1264033 C · Owner: Boder, Nicholas · Inventors: Boder, Nicholas

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

A method of enhancing transdermal delivery of a pharmaceutically active drug from a transdermal delivery system as well as a transdermal delivery system capable of providing a desirable flow interface between the delivery system and the skin surface are disclosed. The method involves pre-treating an area of skin with an anticholinergic agent in an amount sufficient to have a local antisecretory effect on the area treated such, amount being insufficient to cause systemic effects; and applying the transdermal delivery system to the pretreated area. The delivery system of the present invention is comprised of a carrier means a pharma-, ceutically active drug and an anticholinergic agent. With …

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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 December 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 2006.
  • 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 10, 1985
GrantedDecember 27, 1989
Term endedDecember 27, 2006
Patent numberCA 1264033 C
Classification (IPC)A61K9/70

Timeline

Timeline From CIPO dates

1986198919921995199820012004Application filedOct 10, 1985Patent grantedDec 27, 1989Term endedDec 27, 2006

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