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Expired European patentEurope

Methods of preparing, cleaning and repairing an article

EP 1704933 B1 · Applicant: United Technologies 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 March 21, 2005 and granted December 19, 2012. A European patent lasts at most 20 years from filing, so its term ended March 21, 2025.
  • 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.
FiledMarch 21, 2005
PublishedSeptember 27, 2006
GrantedDecember 19, 2012
Term endedMarch 21, 2025
Application numberEP 05251713
Classification (CPC)F01D25/32 +2 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedMarch 21, 2005PublishedSep 27, 2006Patent grantedDec 19, 2012Term endedMarch 21, 2025

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.