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Expired European patentEurope

Read timing method and circuit for nonvolatile memories

EP 0668591 B1 · Applicant: SGS-THOMSON MICROELECTRONICS S.r.l.

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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.

Why it's free to use

  • Filed February 18, 1994 and granted October 20, 1999. A European patent lasts at most 20 years from filing, so its term ended February 18, 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 August 18, 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.
FiledFebruary 18, 1994
PublishedAugust 23, 1995
GrantedOctober 20, 1999
Term endedFebruary 18, 2014
Application numberEP 94830074
Classification (CPC)G11C7/22 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedFeb 18, 1994PublishedAug 23, 1995Patent grantedOct 20, 1999Term endedFeb 18, 2014

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