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Expired European patentEurope

Plasma processing device

EP 1729322 B1 · Applicant: NGK INSULATORS, LTD.

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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.

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Why it's free to use

  • Filed May 30, 2006 and granted January 11, 2012. A European patent lasts at most 20 years from filing, so its term ended May 30, 2026.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledMay 30, 2006
PublishedDecember 6, 2006
GrantedJanuary 11, 2012
Term endedMay 30, 2026
Application numberEP 06252784
Classification (CPC)H01J37/32082 +1 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMay 30, 2006PublishedDec 6, 2006Patent grantedJan 11, 2012Term endedMay 30, 2026

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.