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Expired European patentEurope

Color stable rosin esters and preparation thereof

EP 0950081 B1 · Applicant: ARIZONA CHEMICAL COMPANY

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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 December 11, 1997 and granted June 28, 2006. A European patent lasts at most 20 years from filing, so its term ended December 11, 2017.
  • 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 11, 2023.
  • 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 11, 1997
PublishedOctober 20, 1999
GrantedJune 28, 2006
Term endedDecember 11, 2017
Application numberEP 97949802
Classification (CPC)C09F1/04

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedDec 11, 1997PublishedOct 20, 1999Patent grantedJune 28, 2006Term endedDec 11, 2017

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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