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Expired Canadian patentCanada

System and apparatus for customizing a computer animation wireframe

CA 2236235 C · Owner: At&T Intellectual Property Ii, L.P. · Inventors: Ostermann, Joern; Chen, Lawrence Shao-Hsien

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An animation wireframe is modified with three-dimensional (3D) range and color data having a corresponding shape surface. The animation wireframe is vertically scaled based on distances between consecutive features within the 3D range and color data and corresponding distances within the generic animation wireframe. For each animation wireframe point the, location of the animation wireframe point is adjusted to coincide with a point on the shape surface. The shape surface point lies along a scaling line connecting the animation wireframe point, the shape surface point and an origin point. The scaling line is within a horizontal plane.

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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 29, 1998 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2020.
  • 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 29, 1998
GrantedJuly 9, 2002
Term endedApril 29, 2018
Patent numberCA 2236235 C
Classification (IPC)G06T17/20

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedApril 29, 1998Patent grantedJuly 9, 2002Term endedApril 29, 2018

Sources & verification

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