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Expired European patentEurope

Non-aqueous electrolyte and lithium secondary battery using the same

EP 1037293 B1 · Applicant: Sumitomo Chemical Company, Limited

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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 March 14, 2000 and granted May 16, 2007. A European patent lasts at most 20 years from filing, so its term ended March 14, 2020.
  • 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 September 14, 2025.
  • 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.
FiledMarch 14, 2000
PublishedSeptember 20, 2000
GrantedMay 16, 2007
Term endedMarch 14, 2020
Application numberEP 00105299
Classification (CPC)H01M10/052 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMarch 14, 2000PublishedSep 20, 2000Patent grantedMay 16, 2007Term endedMarch 14, 2020

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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