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Expired European patentEurope

Circuit for deriving a synchronizing signal contained in an incoming video signal

EP 0168089 B1 · Applicant: Philips Electronics N.V.

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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 June 18, 1985 and granted April 18, 1990. A European patent lasts at most 20 years from filing, so its term ended June 18, 2005.
  • 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 December 18, 2010.
  • 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.
FiledJune 18, 1985
PublishedJanuary 15, 1986
GrantedApril 18, 1990
Term endedJune 18, 2005
Application numberEP 85200961
Classification (CPC)H04N5/08

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedJune 18, 1985PublishedJan 15, 1986Patent grantedApril 18, 1990Term endedJune 18, 2005

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