Patent Yard Sign in
Expired Canadian patentCanada

Skin permeation enhancer compositions using glycerol monooleate

CA 1329547 C · Owner: Alza Corporation · Inventors: Taskovich, Lina T.

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

A method for enhancing the flux of transdermally deliverable drugs through intact skin is described in which the drug is delivered simultaneously with glycerol monooleate. Preferred embodiments of therapeutic systems for delivering drug and glycerol monooleate employ matrix containing drug at a concentration above saturation.

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 May 17, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 17, 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.
FiledNovember 14, 1988
GrantedMay 17, 1994
Term endedMay 17, 2011
Patent numberCA 1329547 C
Classification (IPC)A61K47/14 +1 more

Timeline

Timeline From CIPO dates

19891992199519982001200420072010Application filedNov 14, 1988Patent grantedMay 17, 1994Term endedMay 17, 2011

Sources & verification

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