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Expired European patentEurope

A method of manufacturing a negative electrode for lithium secondary battery

EP 0698934 B1 · Applicant: SHARP KABUSHIKI KAISHA

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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 July 28, 1995 and granted January 7, 1999. A European patent lasts at most 20 years from filing, so its term ended July 28, 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 January 28, 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.
FiledJuly 28, 1995
PublishedFebruary 28, 1996
GrantedJanuary 7, 1999
Term endedJuly 28, 2015
Application numberEP 95305270
Classification (CPC)H01M4/583

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedJuly 28, 1995PublishedFeb 28, 1996Patent grantedJan 7, 1999Term endedJuly 28, 2015

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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