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Expired European patentEurope

Methods and apparatus for treating workpieces with plasmas

EP 0817237 B1 · Applicant: APPLIED MATERIALS, INC.

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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 October 5, 1994 and granted August 16, 2000. A European patent lasts at most 20 years from filing, so its term ended October 5, 2014.
  • 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 5, 2020.
  • 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 5, 1994
PublishedJanuary 7, 1998
GrantedAugust 16, 2000
Term endedOctober 5, 2014
Application numberEP 97116533
Classification (CPC)H01J37/32009 +1 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedOct 5, 1994PublishedJan 7, 1998Patent grantedAug 16, 2000Term endedOct 5, 2014

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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