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Expired European patentEurope

Non-aqueous secondary cell

EP 0689255 B1 · Applicant: FUJI PHOTO FILM CO., LTD.

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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.

Why it's free to use

  • Filed May 23, 1995 and granted April 1, 1998. A European patent lasts at most 20 years from filing, so its term ended May 23, 2015.
  • 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 23, 2020.
  • 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 23, 1995
PublishedDecember 27, 1995
GrantedApril 1, 1998
Term endedMay 23, 2015
Application numberEP 95107873
Classification (CPC)H01M4/62 +2 more

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedMay 23, 1995PublishedDec 27, 1995Patent grantedApril 1, 1998Term endedMay 23, 2015

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