Expired European patentEurope
Complexes from anthralin and one sterol, process for their preparation and their use in therapeutics and cosmetics
EP 0337890 B1 · Applicant: CENTRE INTERNATIONAL DE RECHERCHES DERMATOLOGIQUES GALDERMA - CIRD GALDERMA Groupement d'Intérêt Economique dit:
Overview
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 13, 1989 and granted March 18, 1992. A European patent lasts at most 20 years from filing, so its term ended April 13, 2009.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by October 13, 2014.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledApril 13, 1989
PublishedOctober 18, 1989
GrantedMarch 18, 1992
Term endedApril 13, 2009
Application numberEP 89401023
Classification (CPC)A61Q5/00 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.