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Expired European patentEurope

Steam cooling system for balance piston of a steam turbine and associated methods

EP 1050666 B1 · Applicant: Siemens Westinghouse Power 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 May 3, 2000 and granted July 26, 2006. A European patent lasts at most 20 years from filing, so its term ended May 3, 2020.
  • 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 November 3, 2025.
  • 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 3, 2000
PublishedNovember 8, 2000
GrantedJuly 26, 2006
Term endedMay 3, 2020
Application numberEP 00109421
Classification (CPC)F01D3/04 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedMay 3, 2000PublishedNov 8, 2000Patent grantedJuly 26, 2006Term endedMay 3, 2020

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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