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Expired European patentEurope

Hydrocarbon extenders for surface effect compositions

EP 1786972 B1 · Applicant: E.I. DUPONT DE NEMOURS AND COMPANY

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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 August 31, 2005 and granted March 7, 2012. A European patent lasts at most 20 years from filing, so its term ended August 31, 2025.
  • 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.
FiledAugust 31, 2005
PublishedMay 23, 2007
GrantedMarch 7, 2012
Term endedAugust 31, 2025
Application numberEP 05793468
Classification (CPC)D06M15/263 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedAug 31, 2005PublishedMay 23, 2007Patent grantedMarch 7, 2012Term endedAug 31, 2025

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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