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Expired European patentEurope

Preparation of sulphonic fluorinated polymer solutions

EP 1004615 B1 · Applicant: Ausimont S.p.A.

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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 March 24, 1999 and granted December 14, 2005. A European patent lasts at most 20 years from filing, so its term ended March 24, 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 September 24, 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.
FiledMarch 24, 1999
PublishedMay 31, 2000
GrantedDecember 14, 2005
Term endedMarch 24, 2019
Application numberEP 99105912
Classification (CPC)C08J3/091

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedMarch 24, 1999PublishedMay 31, 2000Patent grantedDec 14, 2005Term endedMarch 24, 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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