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Expired European patentEurope

Methods and apparatus for the measurement of hydrogen sulphide and thiols in fluids

EP 1583962 B1 · Applicant: SERVICES PETROLIERS SCHLUMBERGER

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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 28, 2003 and granted April 6, 2011. A European patent lasts at most 20 years from filing, so its term ended May 28, 2023.
  • 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 28, 2003
PublishedOctober 12, 2005
GrantedApril 6, 2011
Term endedMay 28, 2023
Application numberEP 03727719
Classification (CPC)G01N33/287 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedMay 28, 2003PublishedOct 12, 2005Patent grantedApril 6, 2011Term endedMay 28, 2023

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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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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