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Expired Canadian patentCanada

Meter electronics and methods for verification diagnostics for a flow meter

CA 2774131 C · Owner: Micro Motion, Inc. · Inventors: Patten, Andrew Timothy; Rensing, Matthew Joseph; Bell, Mark James

CIPO record

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Abstract From the Canadian patent

Meter electronics (20) for a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a vibrational response from the flow meter (5) and a processing system (203) in communication with the interface (201). The vibrational response is a response to a vibration of the flow meter (5) at a substantially resonant frequency. The processing system (203) is configured to receive the vibrational response from the interface (201) determine a frequency (.omega.0) of the vibrational response determine a response voltage (V) and a drive current (I) of the vibrational response measure a decay characteristic (.zeta.) of …

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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 September 19, 2005 and granted June 30, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 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.
FiledSeptember 19, 2005
GrantedJune 30, 2015
Term endedSeptember 19, 2025
Patent numberCA 2774131 C
Classification (IPC)G01F1/84

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Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedSep 19, 2005Patent grantedJune 30, 2015Term endedSep 19, 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.