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Expired European patentEurope

Apparatus and method for injecting compounds in plasma for ICP-OES analysis

EP 0447747 B1 · Applicant: CYTEC TECHNOLOGY CORP.

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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 January 14, 1991 and granted April 12, 1995. A European patent lasts at most 20 years from filing, so its term ended January 14, 2011.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by July 14, 2016.
  • 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.
FiledJanuary 14, 1991
PublishedSeptember 25, 1991
GrantedApril 12, 1995
Term endedJanuary 14, 2011
Application numberEP 91100362
Classification (CPC)G01N21/714

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJan 14, 1991PublishedSep 25, 1991Patent grantedApril 12, 1995Term endedJan 14, 2011

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

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