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Expired European patentEurope

Sensor device used to detect interferometric rotational speed and comprising an optical fibre

EP 1664675 B1 · Applicant: Thales

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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 August 25, 2004 and granted April 23, 2008. A European patent lasts at most 20 years from filing, so its term ended August 25, 2024.
  • 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.
FiledAugust 25, 2004
PublishedJune 7, 2006
GrantedApril 23, 2008
Term endedAugust 25, 2024
Application numberEP 04766597
Classification (CPC)G01J9/02 +1 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedAug 25, 2004PublishedJune 7, 2006Patent grantedApril 23, 2008Term endedAug 25, 2024

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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