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Expired European patentEurope

Method for the preparation of carboxylic acids or corresponding esters in the presence of an iridium-based catalyst and soluble iodides

EP 0759022 B1 · Applicant: ACETEX CHIMIE

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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 May 15, 1995 and granted January 26, 2000. A European patent lasts at most 20 years from filing, so its term ended May 15, 2015.
  • 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 November 15, 2020.
  • 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.
FiledMay 15, 1995
PublishedFebruary 26, 1997
GrantedJanuary 26, 2000
Term endedMay 15, 2015
Application numberEP 95920140
Classification (CPC)C07C67/36 +1 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedMay 15, 1995PublishedFeb 26, 1997Patent grantedJan 26, 2000Term endedMay 15, 2015

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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