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Expired Canadian patentCanada

Orientation sensing apparatus and a method for determining an orientation

CA 2787134 C · Owner: Halliburton Energy Services, Inc. · Inventors: Sand, Byron J.; Wiecek, Boguslaw; Davies, Evan L.

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Abstract From the Canadian patent

An orientation sensing apparatus includes a rotatable first member defining an x-y plane perpendicular to an axis of rotation and a z-axis coincident with the axis of rotation an orientation sensor device for generating orientation data and a rotation sensor device for generating first member rotation data. The orientation sensor device includes first second and third accelerometers for sensing first second and third sensed components in first second and third directions respectively which are substantially perpendicular to each other. The rotation sensor device includes the first accelerometer which is offset from the z- axis and oriented such that the first direction is substantially …

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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 August 3, 2005 and granted October 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 3, 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.
FiledAugust 3, 2005
GrantedOctober 8, 2013
Term endedAugust 3, 2025
Patent numberCA 2787134 C
Classification (IPC)G01C9/00 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 3, 2005Patent grantedOct 8, 2013Term endedAug 3, 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.