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Expired European patentEurope

Agent and method for dyeing fibres

EP 1037593 B1 · Applicant: Wella Aktiengesellschaft

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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 September 8, 1999 and granted February 4, 2004. A European patent lasts at most 20 years from filing, so its term ended September 8, 2019.
  • 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 March 8, 2025.
  • 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.
FiledSeptember 8, 1999
PublishedSeptember 27, 2000
GrantedFebruary 4, 2004
Term endedSeptember 8, 2019
Application numberEP 99944624
Classification (CPC)A61Q5/10 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedSep 8, 1999PublishedSep 27, 2000Patent grantedFeb 4, 2004Term endedSep 8, 2019

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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