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Expired European patentEurope

Method and device to determine the initial clock phase in a synchronous data receiver

EP 0003943 B1 · Applicant: International Business Machines Corporation

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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 January 4, 1979 and granted February 24, 1982. A European patent lasts at most 20 years from filing, so its term ended January 4, 1999.
  • 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 July 4, 2004.
  • 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.
FiledJanuary 4, 1979
PublishedSeptember 5, 1979
GrantedFebruary 24, 1982
Term endedJanuary 4, 1999
Application numberEP 79430002
Classification (CPC)H04L7/027 +1 more

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedJan 4, 1979PublishedSep 5, 1979Patent grantedFeb 24, 1982Term endedJan 4, 1999

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