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Expired European patentEurope

Apparatus and method for calibrating a sensor system

EP 0470140 B1 · Applicant: LANGE, Antti Aarne Ilmari

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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 April 27, 1990 and granted July 14, 1993. A European patent lasts at most 20 years from filing, so its term ended April 27, 2010.
  • 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 October 27, 2015.
  • 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.
FiledApril 27, 1990
PublishedFebruary 12, 1992
GrantedJuly 14, 1993
Term endedApril 27, 2010
Application numberEP 90907069
Classification (CPC)G01D18/008 +1 more

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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