Patent Yard Sign in
European application, no grantEurope

Semiconductor device and method for its preparation

EP 1026751 A2 · Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

EPO PDF

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.

Why it's free to use

  • Filed June 27, 1994 and never granted as a European patent. Had it been granted, its 20-year term would have ended June 27, 2014.
  • 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 December 27, 2019.
  • 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.
FiledJune 27, 1994
PublishedAugust 9, 2000
GrantedNever granted
Term endedJune 27, 2014
Application numberEP 00201134
Classification (CPC)H10P14/3411 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJune 27, 1994PublishedAug 9, 2000Term endedJune 27, 2014

Sources & verification