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Expired European patentEurope

Assay system with in situ formation of diazo reagent

EP 1754062 B1 · Applicant: Beckman Coulter, Inc.

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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, 2005 and granted July 29, 2009. A European patent lasts at most 20 years from filing, so its term ended May 27, 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.
FiledMay 27, 2005
PublishedFebruary 21, 2007
GrantedJuly 29, 2009
Term endedMay 27, 2025
Application numberEP 05755084
Classification (CPC)G01N33/728

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedMay 27, 2005PublishedFeb 21, 2007Patent grantedJuly 29, 2009Term endedMay 27, 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

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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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