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Expired Canadian patentCanada

Volume body renderer

CA 2834997 C · Owner: Landmark Graphics Corporation, A Halliburton Company · Inventors: Callegari, Andres C.

CIPO record

Overview

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

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Abstract From the Canadian patent

Irregular volumes within one or more three dimensional volume datasets are identified and extracted in response to criteria (16). The processing involves automatically finding a seed voxel or seed cell that meets the criteria and thus belongs to an irregular volume of interest and then identifying cells related to the seed cell by one or more predetermined relationships that are therefore also to be grouped into that irregular volume. Information of a suitable type identifies each cell as being related to other cells and belongs to an irregular volume is stored in a data structure (12). Attributes or properties of the identified cell are stored. The extraction and pre- processing allows for …

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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 April 17, 2002 and granted September 13, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 17, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 17, 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.
FiledApril 17, 2002
GrantedSeptember 13, 2016
Term endedApril 17, 2022
Patent numberCA 2834997 C
Classification (IPC)G06T15/08 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedApril 17, 2002Patent grantedSep 13, 2016Term endedApril 17, 2022

Sources & verification

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