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Expired Canadian patentCanada

Coriolis mass flow measuring device

CA 2559701 C · Owner: Wyss, Samuel · Inventors: Sprich, Hans-Joerg; Fuchs, Michael; Drahm, Wolfgang

CIPO record

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Abstract From the Canadian patent

The Coriolis mass flow measuring device includes a vibratory measuring transducer , having at least one measuring tube which has medium flowing through it during operation. In operation, the measuring tube is caused by an exciter arrangement to , undergo mechanical oscillations especially bending oscillations. , Additionally the , Coriolis mass flow measuring device includes a sensor arrangement for producing , oscillation measurement signals (s1 s2) representing the inlet-end and outletend , oscillations of the measuring tube. A measuring device electronics controlling the , exciter arrangement produces an exciter current (i exc) and an intermediate value (X'm) , derived from the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed March 16, 2005 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 16, 2005
GrantedMay 22, 2012
Term endedMarch 16, 2025
Patent numberCA 2559701 C
Classification (IPC)G01F1/84

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 16, 2005Patent grantedMay 22, 2012Term endedMarch 16, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.