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Expired Canadian patentCanada

Oscillating micro-mechanical sensor of angular velocity

CA 2586549 C · Owner: Vti Technologies Oy · Inventors: Blomqvist, Anssi

CIPO record

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Abstract From the Canadian patent

The present invention relates to measuring devices used in measuring angular velocity and, more specifically, to oscillating micro-mechanical sensors of angular velocity. In the sensors of angular velocity according to the present invention, at least one pair of electrodes is provided in association with an edge of a seismic mass (1), (9), (10), (20) (30), (31), which pair of , electrodes together with the surface of the mass (1) (9), (10), (20), (30), (31) form two capacitances such that one of the capacitances of the pair of electrodes will increase and the other capacitance of the pair of electrodes will decrease as a function of the angle of rotation in the primary motion of 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 December 30, 2005 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 30, 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.
FiledDecember 30, 2005
GrantedMarch 20, 2012
Term endedDecember 30, 2025
Patent numberCA 2586549 C
Classification (IPC)G01C19/57

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 30, 2005Patent grantedMarch 20, 2012Term endedDec 30, 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.