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Expired European patentEurope

Sputtering target and process for producing the same

EP 1600526 B1 · Applicant: Nippon Mining & Metals Co., 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 February 3, 2004 and granted March 31, 2010. A European patent lasts at most 20 years from filing, so its term ended February 3, 2024.
  • 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.
FiledFebruary 3, 2004
PublishedNovember 30, 2005
GrantedMarch 31, 2010
Term endedFebruary 3, 2024
Application numberEP 04707650
Classification (CPC)C04B35/547 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedFeb 3, 2004PublishedNov 30, 2005Patent grantedMarch 31, 2010Term endedFeb 3, 2024

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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