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Expired European patentEurope

Planar type plasma discharge display device and drive method therefor

EP 1017082 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 11, 1999 and granted February 21, 2007. A European patent lasts at most 20 years from filing, so its term ended October 11, 2019.
  • 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 11, 2025.
  • 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 11, 1999
PublishedJuly 5, 2000
GrantedFebruary 21, 2007
Term endedOctober 11, 2019
Application numberEP 99402491
Classification (CPC)H01J11/14 +2 more

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedOct 11, 1999PublishedJuly 5, 2000Patent grantedFeb 21, 2007Term endedOct 11, 2019

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