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Expired European patentEurope

Dither signal remover for a dithered ring laser angular rate sensor

EP 0338023 B1 · Applicant: HONEYWELL INC.

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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 14, 1987 and granted May 2, 1991. A European patent lasts at most 20 years from filing, so its term ended December 14, 2007.
  • 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 June 14, 2013.
  • 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 14, 1987
PublishedOctober 25, 1989
GrantedMay 2, 1991
Term endedDecember 14, 2007
Application numberEP 88901743
Classification (CPC)G01C19/664

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedDec 14, 1987PublishedOct 25, 1989Patent grantedMay 2, 1991Term endedDec 14, 2007

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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