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Canadian application, no grantCanada

Use of dehydroepiandrosterone for increasing the number of nmda receptors in a mammal

CA 2351980 A1 · Owner: L'Universite Pierre Et Marie Curie (Paris 6) · Inventors: Vincens, Monique

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

The invention concerns the use of DHEAS for making a pharmaceutical composition designed to increase the number of NMDA receptors in a mammal's brain.

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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 November 19, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 19, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 19, 1999
GrantedNo grant recorded
Term endedNovember 19, 2019
Patent numberCA 2351980 A1
Classification (IPC)A61K31/56 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedNov 19, 1999Term endedNov 19, 2019

Sources & verification

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