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Expired European patentEurope

Electroluminescent device having a very thin emission layer

EP 1056141 B1 · Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

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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 May 25, 2000 and granted January 3, 2007. A European patent lasts at most 20 years from filing, so its term ended May 25, 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 November 25, 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.
FiledMay 25, 2000
PublishedNovember 29, 2000
GrantedJanuary 3, 2007
Term endedMay 25, 2020
Application numberEP 00304450
Classification (CPC)H10K50/11

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMay 25, 2000PublishedNov 29, 2000Patent grantedJan 3, 2007Term endedMay 25, 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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