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Expired Canadian patentCanada

Coriolis flow meter and method for determining flow characteristics

CA 2602863 C · Owner: Duffill, Graeme Ralph · Inventors: Henrot, Denis M.; Duffill, Graeme Ralph; Patten, Andrew T.

CIPO record

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Abstract From the Canadian patent

A Coriolis flow meter (5) is provided according to an embodiment of the invention. The meter (5) includes one or more flow conduits (103) at least , two pickoff sensors (105, 105') affixed to the one or more flow conduits (103), a driver (104) configured to vibrate the one or more flow conduits (103), and meter electronics (20) coupled to the at least two pickoff sensors (105, 105') and to the driver (104). The meter electronics (20) vibrate the one or more flow conduits (103) of the flow meter (5) with a first vibration frequency and in a first out-of-phase bending mode measure a first , vibrational response with the first vibrational response being generated in response to 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 29, 2005 and granted March 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 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 29, 2005
GrantedMarch 19, 2013
Term endedMarch 29, 2025
Patent numberCA 2602863 C
Classification (IPC)G01F1/84

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 29, 2005Patent grantedMarch 19, 2013Term endedMarch 29, 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.