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Expired Canadian patentCanada

Gastroresistant pharmaceutical formulations for oral administration containing bile acids

CA 2065773 C · Owner: Alfa Wassermann S.P.A. · Inventors: Rotini, Leone Gabriele; Tamagnone, Gianfranco; Marchi, Egidio

CIPO record

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

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Abstract From the Canadian patent

Pharmaceutical formulations for oral administration coated by an enterosoluble gastroresistant film preferably, selected from gastroresistant granulates gastroresistant, tablets. gastroresistant hard gelatine capsules containing powders or granulates or two or more tablets or oily suspensions, gastroresistant soft gelatine capsules containing oily suspensions and hard gelatine capsules containing gastroresistant granulates or two or more gastroresistant tablets, containing therapeutically effective amounts of bile acids mixed with physiologically compatible basic substances which favour bile acids salification and therefore bile acids absorption in the intestinal tract process for their …

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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 April 10, 1992 and granted January 26, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 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.
FiledApril 10, 1992
GrantedJanuary 26, 1999
Term endedApril 10, 2012
Patent numberCA 2065773 C
Classification (IPC)A61K31/57 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedApril 10, 1992Patent grantedJan 26, 1999Term endedApril 10, 2012

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