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European application, no grantEurope

Non-aqueous secondary battery containing graphite powder and a manufacturing method of graphite powder

EP 1156542 A1 · Applicant: Hitachi, 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.

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Why it's free to use

  • Filed April 1, 1996 and never granted as a European patent. Had it been granted, its 20-year term would have ended April 1, 2016.
  • 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 October 1, 2021.
  • 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.
FiledApril 1, 1996
PublishedNovember 21, 2001
GrantedNever granted
Term endedApril 1, 2016
Application numberEP 01113213
Classification (CPC)H01M10/058 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedApril 1, 1996PublishedNov 21, 2001Term endedApril 1, 2016

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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