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European application, no grantEurope

Process and system for detecting alternating stray current corrosion in cathodically protected plants

EP 1598446 A2 · Applicant: E.ON Ruhrgas AG

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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 April 19, 2005 and never granted as a European patent. Had it been granted, its 20-year term would have ended April 19, 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.
FiledApril 19, 2005
PublishedNovember 23, 2005
GrantedNever granted
Term endedApril 19, 2025
Application numberEP 05008456
Classification (CPC)C23F13/04 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedApril 19, 2005PublishedNov 23, 2005Term endedApril 19, 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

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