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Expired European patentEurope

Process for the removal of impurities from phenol by treatment with at least one acid catalyst

EP 1095927 B1 · Applicant: Phenolchemie GmbH & Co. KG

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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 17, 2000 and granted April 2, 2003. A European patent lasts at most 20 years from filing, so its term ended October 17, 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 April 17, 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 17, 2000
PublishedMay 2, 2001
GrantedApril 2, 2003
Term endedOctober 17, 2020
Application numberEP 00122595
Classification (CPC)C07C37/685 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedOct 17, 2000PublishedMay 2, 2001Patent grantedApril 2, 2003Term endedOct 17, 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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