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Expired European patentEurope

Aqueous compositions and method for cleaning gas turbine compressor blades

EP 1664385 B1 · Applicant: GENERAL ELECTRIC COMPANY

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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 August 17, 2004 and granted June 12, 2019. A European patent lasts at most 20 years from filing, so its term ended August 17, 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.
FiledAugust 17, 2004
PublishedJune 7, 2006
GrantedJune 12, 2019
Term endedAugust 17, 2024
Application numberEP 04781411
Classification (CPC)C11D3/0073 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedAug 17, 2004PublishedJune 7, 2006Patent grantedJune 12, 2019Term endedAug 17, 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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