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Expired European patentEurope

Methods and apparatus for detecting certain compounds

EP 0277745 B1 · Applicant: BRITISH TECHNOLOGY GROUP 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 January 26, 1988 and granted August 23, 1995. A European patent lasts at most 20 years from filing, so its term ended January 26, 2008.
  • 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 26, 2013.
  • 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 26, 1988
PublishedAugust 10, 1988
GrantedAugust 23, 1995
Term endedJanuary 26, 2008
Application numberEP 88300621
Classification (CPC)G01R33/441 +1 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedJan 26, 1988PublishedAug 10, 1988Patent grantedAug 23, 1995Term endedJan 26, 2008

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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