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European application, no grantEurope

Method and apparatus for detecting a frame alignment word in a data stream

EP 0443754 A2 · Applicant: GPT LIMITED

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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 11, 1991 and never granted as a European patent. Had it been granted, its 20-year term would have ended February 11, 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 11, 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 11, 1991
PublishedAugust 28, 1991
GrantedNever granted
Term endedFebruary 11, 2011
Application numberEP 91301061
Classification (CPC)H04J3/0608

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedFeb 11, 1991PublishedAug 28, 1991Term endedFeb 11, 2011

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