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Expired European patentEurope

Process for manufacturing terephthalic acid

EP 0873296 B1 · Applicant: SUNKYONG INDUSTRIES CO., LTD.

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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 30, 1995 and granted August 29, 2001. A European patent lasts at most 20 years from filing, so its term ended December 30, 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 June 30, 2021.
  • 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 30, 1995
PublishedOctober 28, 1998
GrantedAugust 29, 2001
Term endedDecember 30, 2015
Application numberEP 95941923
Classification (CPC)C07C51/09

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedDec 30, 1995PublishedOct 28, 1998Patent grantedAug 29, 2001Term endedDec 30, 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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