Patent Yard Sign in
Expired Canadian patentCanada

Transdermal 2-(4-isobutylphenyl)-propionic acid medication and methods

CA 1202240 A · Owner: Dolorgiet G.M.B.H. & Co. Kg · Inventors: Gruber, Klaus; Wagener, Hans H.; Posselt, Klaus

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

An externally administrable pharmaceutical which contains an effective amount of 2-(4-isobutylphenyl)propionic acid in a base is obtained by drug dissolution in a mixture of C6-12 carboxylic acid triglycerides glycerol monostearate-polyoxyethylene stearate mixture and polyoxyethylene-fatty acid esters. A cream is obtained by stirring this solution with an aqueous phase in the presence of heat.

Read the whole patent

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 March 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 2003.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 15, 1983
GrantedMarch 25, 1986
Term endedMarch 25, 2003
Patent numberCA 1202240 A
Classification (IPC)A61K9/06 +2 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedFeb 15, 1983Patent grantedMarch 25, 1986Term endedMarch 25, 2003

Sources & verification

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