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Doppler type ultrasonic flowmeter, flow rate measuring method using doppler type ultrasonic flowmeter and flow rate measuring program used in this doppler type ultrasonic flowmeter

EP 1808675 B1 · Applicant: THE TOKYO ELECTRIC POWER COMPANY INCORPORATED

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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 June 3, 2003 and granted May 23, 2012. A European patent lasts at most 20 years from filing, so its term ended June 3, 2023.
  • 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.
FiledJune 3, 2003
PublishedJuly 18, 2007
GrantedMay 23, 2012
Term endedJune 3, 2023
Application numberEP 07008311
Classification (CPC)G01F1/663 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedJune 3, 2003PublishedJuly 18, 2007Patent grantedMay 23, 2012Term endedJune 3, 2023

Sources & verification

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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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