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Expired European patentEurope

Combination of pyrimidine derivatives and hydrocortisone to induce and stimulate the hair growth and to reduce hair loss

EP 0321950 B1 · Applicant: L'OREAL

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 December 21, 1988 and granted January 12, 1994. A European patent lasts at most 20 years from filing, so its term ended December 21, 2008.
  • 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 June 21, 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.
FiledDecember 21, 1988
PublishedJune 28, 1989
GrantedJanuary 12, 1994
Term endedDecember 21, 2008
Application numberEP 88121399
Classification (CPC)A61K31/57 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedDec 21, 1988PublishedJune 28, 1989Patent grantedJan 12, 1994Term endedDec 21, 2008

Sources & verification