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Expired Canadian patentCanada

Lens adjustment device of stereo camera

CA 2224186 C · Owner: Inaba, Minoru · Inventors: Inaba, Minoru

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A lens adjustment device of a stereo camera of this invention operates adjustment rings of right and left lenses of an optical axis distance variable type stereo camera in the interlocking arrangement with each other. Crank arms are provided on stop adjustment rings of lenses mounted on the right and left lens boards capable of adjusting the distance between the optical axes. The right and left crank arms are disposed in symmetry of rotation at 180°. The center of a lever in a vertical direction is fitted to a shaft on a slide frame. The upper end portion of the lever and one of the crank arms are interconnected by a link, while the lower end portion of the lever and the other crank arm are …

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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 9, 1997 and granted October 30, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2019.
  • 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 9, 1997
GrantedOctober 30, 2001
Term endedDecember 9, 2017
Patent numberCA 2224186 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 9, 1997Patent grantedOct 30, 2001Term endedDec 9, 2017

Sources & verification

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