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Expired European patentEurope

Process for localizing time critical facts in the interior of a sequential electronic circuit

EP 0136609 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 September 14, 1984 and granted January 27, 1988. A European patent lasts at most 20 years from filing, so its term ended September 14, 2004.
  • 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 March 14, 2010.
  • 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.
FiledSeptember 14, 1984
PublishedApril 10, 1985
GrantedJanuary 27, 1988
Term endedSeptember 14, 2004
Application numberEP 84111010
Classification (CPC)G01R31/305

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedSep 14, 1984PublishedApril 10, 1985Patent grantedJan 27, 1988Term endedSep 14, 2004

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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