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European application, no grantEurope

Semiconductor integrated circuit incorporating an active device and a distributed resistor-capacitor device

EP 0051902 A1 · Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

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Overview

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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, 1979 and never granted as a European patent. Had it been granted, its 20-year term would have ended December 21, 1999.
  • 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 June 21, 2005.
  • 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, 1979
PublishedMay 19, 1982
GrantedNever granted
Term endedDecember 21, 1999
Application numberEP 81201385
Classification (CPC)H10D1/47 +2 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedDec 21, 1979PublishedMay 19, 1982Term endedDec 21, 1999

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.