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Expired Canadian patentCanada

High buffer-containing enteric coated digestive enzyme bile-acid compositions and method of treating digestive disorders therewith

CA 2228389 C · Owner: Sipos, Tibor · Inventors: Sipos, Tibor

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

Disclosed are gastric acid-resistant polymer-coated buffered digestive enzymes/bile acid compositions process for their preparations and methods of treating digestive disorders and cystic fibrosis by administering said compositions to a mammal in need of such treatment.

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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

  • Filed January 30, 1998 and granted December 30, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 30, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 1998
GrantedDecember 30, 2003
Term endedJanuary 30, 2018
Patent numberCA 2228389 C
Classification (IPC)A61K38/43 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedJan 30, 1998Patent grantedDec 30, 2003Term endedJan 30, 2018

Sources & verification

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