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Expired European patentEurope

Process of preparing turbine blades with a masking strip having a connector for a subsequent treatment, and turbine blade therefor

EP 1820872 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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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 January 10, 2006 and granted March 2, 2011. A European patent lasts at most 20 years from filing, so its term ended January 10, 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.
FiledJanuary 10, 2006
PublishedAugust 22, 2007
GrantedMarch 2, 2011
Term endedJanuary 10, 2026
Application numberEP 06000401
Classification (CPC)C23C4/123 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedJan 10, 2006PublishedAug 22, 2007Patent grantedMarch 2, 2011Term endedJan 10, 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

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