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Expired Canadian patentCanada

Method of treatment for autoimmune diseases

CA 1333569 C · Owner: Baker Norton Pharmaceuticals, Inc. · Inventors: Sherman, Fred P.; Atkinson, David C.

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

A method of treating a human or animal patient suffering from an autoimmune disease comprises daily administration to such patient of from about 1 to about 100 mg of the narcotic antagonists nalmefene or naltrexone. The nalmefene or naltrexone may be administered in equally divided doses from one to four times daily preferably by the, oral route. Parenteral administration may be utilized where suitable.

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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 20, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 20, 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.
FiledSeptember 27, 1989
GrantedDecember 20, 1994
Term endedDecember 20, 2011
Patent numberCA 1333569 C
Classification (IPC)A61K31/48

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedSep 27, 1989Patent grantedDec 20, 1994Term endedDec 20, 2011

Sources & verification

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