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Expired Canadian patentCanada

Process for creating a parametric surface having a required geometrical continuity

CA 2554366 C · Owner: Dassault Systemes · Inventors: Nigro, Vincent

CIPO record

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Abstract From the Canadian patent

The invention is directed to a process for creating a parametric surface having a required geometrical continuity Gi from a set of parametric elementary surfaces. Said process comprises a step of providing a set of parametric elementary surfaces each elementary surface having edges, with vertices joining adjacent edges each elementary surface having an internal continuity Cj at least equal to the required continuity Gi the geometrical continuity between at least two elementary surfaces across their common edge, being less than the required continuity Gi. Further for each singular vertex, the process comprise steps of: defining a system of equations linking the parameters (including position …

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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 July 27, 2006 and granted February 18, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 27, 2026.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 27, 2006
GrantedFebruary 18, 2014
Term endedJuly 27, 2026
Patent numberCA 2554366 C
Classification (IPC)G06T19/00 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 27, 2006Patent grantedFeb 18, 2014Term endedJuly 27, 2026

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