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Expired European patentEurope

Liquid level sensor and method of estimation

EP 1831652 B1 · Applicant: Inergy Automotive Systems Research (Société Anonyme)

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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 December 20, 2005 and granted June 5, 2013. A European patent lasts at most 20 years from filing, so its term ended December 20, 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.
FiledDecember 20, 2005
PublishedSeptember 12, 2007
GrantedJune 5, 2013
Term endedDecember 20, 2025
Application numberEP 05821694
Classification (CPC)G01F23/266

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedDec 20, 2005PublishedSep 12, 2007Patent grantedJune 5, 2013Term endedDec 20, 2025

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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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