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Expired Canadian patentCanada

Use of transglutaminase inhibitor for the treatment of scar tissue

CA 2132416 C · Owner: Bowness, John Michael · Inventors: Bowness, John Michael; Dolynchuk, Kenneth Nicholas

CIPO record

Overview

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

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Abstract From the Canadian patent

The invention relates to the therapeutic treatment of hypertrophic scar tissue within a composition comprising a non-toxic transglutaminase inhibitor, such as putrescine or a pharmaceutically , acceptable acid addition salt thereof and a pharmaceutically, acceptable carrier or diluent. A successful method for treating hypertrophic scar tissue with such compositions, is also disclosed.

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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 March 23, 1992 and granted March 6, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 23, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 23, 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.
FiledMarch 23, 1992
GrantedMarch 6, 2001
Term endedMarch 23, 2012
Patent numberCA 2132416 C
Classification (IPC)A61K31/27 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMarch 23, 1992Patent grantedMarch 6, 2001Term endedMarch 23, 2012

Sources & verification

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