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Expired European patentEurope

Analytical method and device for determining metal concentration in liquid hydrocarbon matrices

EP 1496357 B1 · Applicant: Afton Chemical Intangibles LLC

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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 27, 2004 and granted November 22, 2006. A European patent lasts at most 20 years from filing, so its term ended May 27, 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.
FiledMay 27, 2004
PublishedJanuary 12, 2005
GrantedNovember 22, 2006
Term endedMay 27, 2024
Application numberEP 04012554
Classification (CPC)G01N31/22 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedMay 27, 2004PublishedJan 12, 2005Patent grantedNov 22, 2006Term endedMay 27, 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

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