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Expired European patentEurope

Multi-state non-volatile integrated circuit memory systems that employ dielectric storage elements

EP 1777751 B1 · Applicant: SanDisk Corporation

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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 October 31, 2002 and granted August 26, 2009. A European patent lasts at most 20 years from filing, so its term ended October 31, 2022.
  • 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.
FiledOctober 31, 2002
PublishedApril 25, 2007
GrantedAugust 26, 2009
Term endedOctober 31, 2022
Application numberEP 07002288
Classification (CPC)H10B69/00 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedOct 31, 2002PublishedApril 25, 2007Patent grantedAug 26, 2009Term endedOct 31, 2022

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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