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Expired European patentEurope

Process for making 2-alkyl-3-hydroxybenzoic acids

EP 1008583 B1 · Applicant: ROHM AND HAAS 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 November 26, 1999 and granted October 9, 2002. A European patent lasts at most 20 years from filing, so its term ended November 26, 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 May 26, 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.
FiledNovember 26, 1999
PublishedJune 14, 2000
GrantedOctober 9, 2002
Term endedNovember 26, 2019
Application numberEP 99309476
Classification (CPC)C07C51/09 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedNov 26, 1999PublishedJune 14, 2000Patent grantedOct 9, 2002Term endedNov 26, 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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