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Expired European patentEurope

Method for preparing an electrode and use thereof in electrochemical processes

EP 0404208 B1 · Applicant: DE NORA PERMELEC 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 December 13, 1985 and granted September 6, 1995. A European patent lasts at most 20 years from filing, so its term ended December 13, 2005.
  • 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 13, 2011.
  • 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 13, 1985
PublishedDecember 27, 1990
GrantedSeptember 6, 1995
Term endedDecember 13, 2005
Application numberEP 90115243
Classification (CPC)C25B11/091

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedDec 13, 1985PublishedDec 27, 1990Patent grantedSep 6, 1995Term endedDec 13, 2005

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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