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Expired European patentEurope

Method for recovering fluorinated alkanoic acids from waste waters

EP 1093441 B1 · Applicant: Dyneon 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 May 27, 1999 and granted December 4, 2002. A European patent lasts at most 20 years from filing, so its term ended May 27, 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 November 27, 2024.
  • 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 27, 1999
PublishedApril 25, 2001
GrantedDecember 4, 2002
Term endedMay 27, 2019
Application numberEP 99926443
Classification (CPC)C02F1/42 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedMay 27, 1999PublishedApril 25, 2001Patent grantedDec 4, 2002Term endedMay 27, 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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