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Expired European patentEurope

Memory element, memory device, and semiconductor device

EP 1866964 B1 · Applicant: SEMICONDUCTOR ENERGY LABORATORY 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 March 22, 2006 and granted August 10, 2016. A European patent lasts at most 20 years from filing, so its term ended March 22, 2026.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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 22, 2006
PublishedDecember 19, 2007
GrantedAugust 10, 2016
Term endedMarch 22, 2026
Application numberEP 06730321
Classification (CPC)H10D86/40 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMarch 22, 2006PublishedDec 19, 2007Patent grantedAug 10, 2016Term endedMarch 22, 2026

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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