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Expired Canadian patentCanada

Three dimensional position observation method and apparatus

CA 2614254 C · Owner: Japan Science And Technology Agency · Inventors: Mizutani, Kana; Nishizaka, Takayuki

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Abstract From the Canadian patent

A three-dimensional position observation apparatus provided with a lens system having focusing and diaphragm mechanisms for forming an , image on an imaging plane by light from an observation object includes a beam steering member disposed in a light path extending from the observation object to the imaging plane for changing a traveling direction , of observation light into a plurality of different directions and an image , analyzing unit for analyzing a position of the observation object based on a positional relation between a plurality of images on the imaging plane formed by light passing through the beam steering member.

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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 June 29, 2006 and granted April 1, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2026.
  • 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.
FiledJune 29, 2006
GrantedApril 1, 2014
Term endedJune 29, 2026
Patent numberCA 2614254 C
Classification (IPC)G01B11/00 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJune 29, 2006Patent grantedApril 1, 2014Term endedJune 29, 2026

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