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Expired Canadian patentCanada

Pharmaceutical formulation as well as a process for its preparation

CA 1339072 C · Owner: Klinge Pharma Gmbh · Inventors: Hofer, Josef Maximilian; Huber, Hans-Joachim; Schneider, Gerhard

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

A new pharmaceutical formulation as well as a process for its preparation are described, in which the active ingredient in one pharmaceutical form is present in retarded release form in one part, and in another part is present in a form resistant to gastric juices.

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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 July 29, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 29, 1989
GrantedJuly 29, 1997
Term endedJuly 29, 2014
Patent numberCA 1339072 C
Classification (IPC)A61K9/52 +2 more

Timeline

Timeline From CIPO dates

199019931996199920022005200820112014Application filedJune 29, 1989Patent grantedJuly 29, 1997Term endedJuly 29, 2014

Sources & verification

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