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Expired Canadian patentCanada

Tomographic reconstruction of small objects using a priori knowledge

CA 2485576 C · Owner: Visiongate, Inc. · Inventors: Nelson, Alan C.

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Abstract From the Canadian patent

Three-dimensional (3D) reconstruction of a cell (1) includes adjusting a current set of projection images (8, 9) according to a priori knowledge (24) to produce adjusted projection images (9) for example, based on probability , masks and/or Bayesian analysis (16) of multiple similar objects in the same sample (30). A reconstruction algorithm processes the adjusted projection images to generate a 3D image (10). The 3D image is further adjusted according to the a priori knowledge (24) to generate an adjusted 3D image (11). Criteria for process completion are applied to determine whether the adjusted 3D image is adequate (12). Otherwise, a set of pseudo projections are computationally …

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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 May 2, 2003 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 2, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 2, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 2, 2003
GrantedDecember 4, 2012
Term endedMay 2, 2023
Patent numberCA 2485576 C
Classification (IPC)G06T15/00 +1 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMay 2, 2003Patent grantedDec 4, 2012Term endedMay 2, 2023

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