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Expired European patentEurope

Electrochemical energy storage cell

EP 0552465 B1 · Applicant: ABB PATENT GmbH

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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.

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Why it's free to use

  • Filed December 14, 1992 and granted May 15, 1996. A European patent lasts at most 20 years from filing, so its term ended December 14, 2012.
  • 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 14, 2018.
  • 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 14, 1992
PublishedJuly 28, 1993
GrantedMay 15, 1996
Term endedDecember 14, 2012
Application numberEP 92121251
Classification (CPC)H01M10/3909 +1 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedDec 14, 1992PublishedJuly 28, 1993Patent grantedMay 15, 1996Term endedDec 14, 2012

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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