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Expired Canadian patentCanada

Interactively constructing, editing, rendering and manipulating geoscience models

CA 2320447 C · Owner: Lu, Hong-Qian · Inventors: Lu, Hong-Qian; Ramshorn, Christoph 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

A method, computer system or computer program for intereactively constructing editing, rendering and manipulating geoscience models including aggregating the functionality of a geometry system and a graphics system enforcing , consistency between the geometry system and the graphics system and , interfacing the geometry system and the graphics system to an application through an integration layer.

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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 11, 1999 and granted April 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 2021.
  • 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 11, 1999
GrantedApril 12, 2011
Term endedJanuary 11, 2019
Patent numberCA 2320447 C
Classification (IPC)G06T17/05

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJan 11, 1999Patent grantedApril 12, 2011Term endedJan 11, 2019

Sources & verification

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