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Expired European patentEurope

Charge injection auxiliary material

EP 1056140 B1 · Applicant: IDEMITSU KOSAN COMPANY LIMITED

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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 August 26, 1993 and granted July 6, 2005. A European patent lasts at most 20 years from filing, so its term ended August 26, 2013.
  • 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 February 26, 2019.
  • 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.
FiledAugust 26, 1993
PublishedNovember 29, 2000
GrantedJuly 6, 2005
Term endedAugust 26, 2013
Application numberEP 00117358
Classification (CPC)H10K85/60 +2 more

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedAug 26, 1993PublishedNov 29, 2000Patent grantedJuly 6, 2005Term endedAug 26, 2013

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.