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Expired Canadian patentCanada

Apparatus and method for detection of railroad wheel and bearing temperature

CA 2447464 C · Owner: Bartonek, Mark · Inventors: Bartonek, Mark

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Abstract From the Canadian patent

This invention relates to the detection of a temperature range or temperature of a , wheel or bearing of a railway vehicle. An apparatus is provided comprising a sensor , generating signals indicative of infrared radiation radiating from the wheel or bearing , within two or more infrared wavelength ranges. A processor determines a temperature range or a temperature of the wheel or bearing from the generated signals. A method is also provided for detecting a temperature range of a railroad , train wheel or bearing wherein infrared radiation radiating from the wheel or bearing , of a train traversing a railroad track is indicative of the temperature range. The , method includes …

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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 October 30, 2003 and granted June 19, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 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.
FiledOctober 30, 2003
GrantedJune 19, 2012
Term endedOctober 30, 2023
Patent numberCA 2447464 C
Classification (IPC)G01M17/10 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedOct 30, 2003Patent grantedJune 19, 2012Term endedOct 30, 2023

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