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Expired Canadian patentCanada

Use of taurine for the treatment of alopecia

CA 2489308 C · Owner: L'Oreal · Inventors: Duranton, Albert; Breton, Lionel

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 use of taurine and/or hypotaurine and/or the acceptable salts thereof in an oral composition for the preparation of an oral composition that can be used for the treatment and prevention of ageing of the pilosebaceous unit and/or alopecia.

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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 June 23, 2003 and granted September 3, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 23, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 23, 2025.
  • 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 23, 2003
GrantedSeptember 3, 2013
Term endedJune 23, 2023
Patent numberCA 2489308 C
Classification (IPC)A61K31/18 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedJune 23, 2003Patent grantedSep 3, 2013Term endedJune 23, 2023

Sources & verification

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