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Expired European patentEurope

Apparatus and method using an array of ultrasonic sensors for determining the velocity of a fluid within a pipe

EP 1585944 B1 · Applicant: CiDra Corporation

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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 January 13, 2004 and granted September 8, 2010. A European patent lasts at most 20 years from filing, so its term ended January 13, 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.
FiledJanuary 13, 2004
PublishedOctober 19, 2005
GrantedSeptember 8, 2010
Term endedJanuary 13, 2024
Application numberEP 04701857
Classification (CPC)G01F1/74 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedJan 13, 2004PublishedOct 19, 2005Patent grantedSep 8, 2010Term endedJan 13, 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

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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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