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Expired European patentEurope

Methods of detecting motion of television images

EP 0180446 B1 · Applicant: SONY CORPORATION

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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 October 28, 1985 and granted December 20, 1989. A European patent lasts at most 20 years from filing, so its term ended October 28, 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 April 28, 2011.
  • 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.
FiledOctober 28, 1985
PublishedMay 7, 1986
GrantedDecember 20, 1989
Term endedOctober 28, 2005
Application numberEP 85307788
Classification (CPC)H04N5/145

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedOct 28, 1985PublishedMay 7, 1986Patent grantedDec 20, 1989Term endedOct 28, 2005

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