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Expired European patentEurope

Fiber optic sensor array based on sagnac interferometer

EP 1496723 B1 · Applicant: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

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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 March 29, 1999 and granted July 7, 2010. A European patent lasts at most 20 years from filing, so its term ended March 29, 2019.
  • 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 September 29, 2024.
  • 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.
FiledMarch 29, 1999
PublishedJanuary 12, 2005
GrantedJuly 7, 2010
Term endedMarch 29, 2019
Application numberEP 04024731
Classification (CPC)G01H9/004

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedMarch 29, 1999PublishedJan 12, 2005Patent grantedJuly 7, 2010Term endedMarch 29, 2019

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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