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Expired European patentEurope

DCE and method for processing data received in a DCE allowing multiple operating configurations

EP 0499763 B1 · Applicant: International Business Machines Corporation

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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.

Why it's free to use

  • Filed February 21, 1991 and granted April 23, 1997. A European patent lasts at most 20 years from filing, so its term ended February 21, 2011.
  • 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 21, 2016.
  • 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 21, 1991
PublishedAugust 26, 1992
GrantedApril 23, 1997
Term endedFebruary 21, 2011
Application numberEP 91480025
Classification (CPC)H04L27/00 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedFeb 21, 1991PublishedAug 26, 1992Patent grantedApril 23, 1997Term endedFeb 21, 2011

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