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Expired European patentEurope

Non-volatile reconfigurable digital logic unit

EP 1836770 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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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 December 21, 2005 and granted February 11, 2009. A European patent lasts at most 20 years from filing, so its term ended December 21, 2025.
  • 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.
FiledDecember 21, 2005
PublishedSeptember 26, 2007
GrantedFebruary 11, 2009
Term endedDecember 21, 2025
Application numberEP 05825233
Classification (CPC)H03K19/18 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedDec 21, 2005PublishedSep 26, 2007Patent grantedFeb 11, 2009Term endedDec 21, 2025

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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