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Expired Canadian patentCanada

Devices and methods to image objects

CA 2431818 C · Owner: Veridex, Llc · Inventors: Tibbe, Arjan; Greve, Jan; Terstappen, Leon

CIPO record

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Abstract From the Canadian patent

Devices and methods for automated collection and image analysis are disclosed that enable identification or classification of microscopic objects aligned or deposited on surfaces. Such objects, e.g. detectably labeled rare target cells, are magnetically or non-magnetically immobilized and subjected to automated laser scanning to generate sequential digitized x-y sub-images or partial images of target and non-target objects that are combined to form reconstructed full images, thereby allowing detection enumeration, differentiation and characterizarion of the imaged objects on the basis of size, morphology and immunophenotype.

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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 January 4, 2002 and granted November 22, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 4, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 4, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 4, 2002
GrantedNovember 22, 2011
Term endedJanuary 4, 2022
Patent numberCA 2431818 C
Classification (IPC)A61B5/05

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJan 4, 2002Patent grantedNov 22, 2011Term endedJan 4, 2022

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