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Expired European patentEurope

Plasma device including a powered non-magnetic metal member between a plasma ac excitation source and the plasma

EP 1044459 B1 · Applicant: LAM RESEARCH CORPORATION

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Overview

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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 December 31, 1998 and granted May 14, 2003. A European patent lasts at most 20 years from filing, so its term ended December 31, 2018.
  • 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 1, 2024.
  • 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.
FiledDecember 31, 1998
PublishedOctober 18, 2000
GrantedMay 14, 2003
Term endedDecember 31, 2018
Application numberEP 98966132
Classification (CPC)H01J37/34 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedDec 31, 1998PublishedOct 18, 2000Patent grantedMay 14, 2003Term endedDec 31, 2018

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

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