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Expired European patentEurope

Liquid level detector

EP 1174692 B1 · Applicant: NIPPON SEIKI CO., LTD.

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Overview

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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 November 22, 2000 and granted March 20, 2013. A European patent lasts at most 20 years from filing, so its term ended November 22, 2020.
  • 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 May 22, 2026.
  • 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.
FiledNovember 22, 2000
PublishedJanuary 23, 2002
GrantedMarch 20, 2013
Term endedNovember 22, 2020
Application numberEP 00977883
Classification (CPC)G01F23/36 +1 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedNov 22, 2000PublishedJan 23, 2002Patent grantedMarch 20, 2013Term endedNov 22, 2020

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.