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Expired Canadian patentCanada

Method and system for calculating and reporting slump in delivery vehicles

CA 2866958 C · Owner: Verifi Llc · Inventors: Cooley, Roy; Topputo, Michael; Compton, John I.

CIPO record

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Abstract From the Canadian patent

The present invention relates to a system for the delivery of concrete a wireless rotational sensor and a device for determining the rotation of a concrete mixing drum on a concrete delivery truck. The wireless rotational sensor for detecting the rotation of a mixing drum on a concrete delivery vehicle includes an accelerometer mounted to the mixing drum. A wireless transmitter coupled to the accelerometer transmits a signal reflective of rotation of the mixing drum. A wireless receiver receives the signal reflective of drum rotation. A computer processor can also be included coupled to the accelerometer and wireless transmitter and configured to determine angular motion of the concrete …

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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 February 14, 2005 and granted June 28, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 14, 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.
FiledFebruary 14, 2005
GrantedJune 28, 2016
Term endedFebruary 14, 2025
Patent numberCA 2866958 C
Classification (IPC)G01P3/00 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 14, 2005Patent grantedJune 28, 2016Term endedFeb 14, 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.