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European application, no grantEurope

Semiconductor device attached on a substrate

EP 0509732 A2 · Applicant: International Business Machines Corporation

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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 April 13, 1992 and never granted as a European patent. Had it been granted, its 20-year term would have ended April 13, 2012.
  • 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 October 13, 2017.
  • 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.
FiledApril 13, 1992
PublishedOctober 21, 1992
GrantedNever granted
Term endedApril 13, 2012
Application numberEP 92303277
Classification (CPC)H10W40/226

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedApril 13, 1992PublishedOct 21, 1992Term endedApril 13, 2012

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.