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Expired Canadian patentCanada

Flow meter type identification

CA 2547348 C · Owner: Hays, Paul J. · Inventors: Hays, Paul J.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A flow meter monitoring system (100) is provided according to an embodiment of the invention. The flow meter monitoring system (100) includes a communication interface (101) configured to communicate with one or more flow meters and receive meter calibration values for a flow meter of the one or more flow meters. The flow meter monitoring system (100) further includes a processing system (102) in communication with the communication interface (101) and configured to receive the meter calibration values from the communication interface and correlate the meter calibration values to known meter calibration values (114) in order to determine the flow meter type.

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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 December 10, 2003 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 10, 2003
GrantedNovember 20, 2012
Term endedDecember 10, 2023
Patent numberCA 2547348 C
Classification (IPC)G01F1/84

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedDec 10, 2003Patent grantedNov 20, 2012Term endedDec 10, 2023

Sources & verification

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