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Expired European patentEurope

Manufacture of acetic acid

EP 1683780 B1 · Applicant: Acetex (Cyprus) Limited

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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 October 31, 2000 and granted March 4, 2009. A European patent lasts at most 20 years from filing, so its term ended October 31, 2020.
  • 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 1, 2026.
  • 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.
FiledOctober 31, 2000
PublishedJuly 26, 2006
GrantedMarch 4, 2009
Term endedOctober 31, 2020
Application numberEP 06006456
Classification (CPC)F25J3/0252 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedOct 31, 2000PublishedJuly 26, 2006Patent grantedMarch 4, 2009Term endedOct 31, 2020

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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