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Expired Canadian patentCanada

Method and installation for acousto-optic imaging

CA 2569985 C · Owner: Gross, Michel · Inventors: Roosen, Gerald; Boccara, Albert-Claude; Ramaz, Francois Georges Gerard

CIPO record

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Abstract From the Canadian patent

The invention concerns an acousto-optic imaging method comprising a step which consists in engraving in a dynamic holographic material (9) a complex index array resulting from the interference of the acousto-optic component of the signal wave (SIG) and a pump wave (PMP) of frequency equal to the frequency of the acousto-optic component.

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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 10, 2005 and granted August 26, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 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.
FiledJune 10, 2005
GrantedAugust 26, 2014
Term endedJune 10, 2025
Patent numberCA 2569985 C
Classification (IPC)G03H3/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 10, 2005Patent grantedAug 26, 2014Term endedJune 10, 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.