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Expired European patentEurope

Method and apparatus for the channelized serial transmission of redundantly encoded binary data

EP 0240146 B1 · Applicant: NORTHERN TELECOM 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 25, 1987 and granted August 5, 1992. A European patent lasts at most 20 years from filing, so its term ended February 25, 2007.
  • 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 25, 2012.
  • 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 25, 1987
PublishedOctober 7, 1987
GrantedAugust 5, 1992
Term endedFebruary 25, 2007
Application numberEP 87301679
Classification (CPC)H04L7/048 +1 more

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedFeb 25, 1987PublishedOct 7, 1987Patent grantedAug 5, 1992Term endedFeb 25, 2007

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