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Expired European patentEurope

Immunoassay method and apparatus therefor

EP 0684472 B1 · Applicant: DAIKIN INDUSTRIES, LIMITED

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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 October 26, 1994 and granted January 8, 2003. A European patent lasts at most 20 years from filing, so its term ended October 26, 2014.
  • 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 April 26, 2020.
  • 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.
FiledOctober 26, 1994
PublishedNovember 29, 1995
GrantedJanuary 8, 2003
Term endedOctober 26, 2014
Application numberEP 94931182
Classification (CPC)G01N33/543 +1 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedOct 26, 1994PublishedNov 29, 1995Patent grantedJan 8, 2003Term endedOct 26, 2014

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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