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Expired European patentEurope

Rotation rate measurement and fiber optic gyroscopes

EP 0871009 B1 · Applicant: Litton Systems

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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 April 9, 1997 and granted January 26, 2005. A European patent lasts at most 20 years from filing, so its term ended April 9, 2017.
  • 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 9, 2022.
  • 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 9, 1997
PublishedOctober 14, 1998
GrantedJanuary 26, 2005
Term endedApril 9, 2017
Application numberEP 97302433
Classification (CPC)G01C19/72

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedApril 9, 1997PublishedOct 14, 1998Patent grantedJan 26, 2005Term endedApril 9, 2017

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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