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Expired European patentEurope

Method of treating hair, especially the tips

EP 0201622 B1 · Applicant: L'OREAL

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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.

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Why it's free to use

  • Filed July 21, 1983 and granted February 5, 1992. A European patent lasts at most 20 years from filing, so its term ended July 21, 2003.
  • 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 January 21, 2009.
  • 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.
FiledJuly 21, 1983
PublishedNovember 20, 1986
GrantedFebruary 5, 1992
Term endedJuly 21, 2003
Application numberEP 85110670
Classification (CPC)A45D20/00 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedJuly 21, 1983PublishedNov 20, 1986Patent grantedFeb 5, 1992Term endedJuly 21, 2003

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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