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Expired European patentEurope

Electrochemical stripping of turbine blades

EP 1169495 B1 · Applicant: CHROMALLOY GAS TURBINE CORPORATION

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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 10, 1999 and granted December 5, 2012. A European patent lasts at most 20 years from filing, so its term ended December 10, 2019.
  • 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 June 10, 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.
FiledDecember 10, 1999
PublishedJanuary 9, 2002
GrantedDecember 5, 2012
Term endedDecember 10, 2019
Application numberEP 99967257
Classification (CPC)C25F5/00

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedDec 10, 1999PublishedJan 9, 2002Patent grantedDec 5, 2012Term endedDec 10, 2019

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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