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Expired European patentEurope

Mixtures of reactive dyes and their use

EP 1608708 B1 · Applicant: Huntsman Advanced Materials (Switzerland) GmbH

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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 March 24, 2004 and granted January 11, 2012. A European patent lasts at most 20 years from filing, so its term ended March 24, 2024.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledMarch 24, 2004
PublishedDecember 28, 2005
GrantedJanuary 11, 2012
Term endedMarch 24, 2024
Application numberEP 04722872
Classification (CPC)C09B62/4415 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedMarch 24, 2004PublishedDec 28, 2005Patent grantedJan 11, 2012Term endedMarch 24, 2024

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

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