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Expired Canadian patentCanada

Method and forming machine for deforming a workpiece

CA 2542912 C · Owner: Massee, Johan · Inventors: Massee, Johan

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

The invention relates to a method and a forming machine for deforming a workpiece, such as a metal cylinder or plate (3) by means of a tool, in , particular one or more forming rollers (5) wherein the workpiece and/or the , tool are rotated about an axis (4) relative to each other the tool move; , through one or more deforming curves and at least part of the workpiece is deformed. During the deforming process values of one or more coordinates of , the position of the extreme: edge of the workpiece are measured and one or , more parameters of the deforming process is/are changed on the basis of the measured values.

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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 November 4, 2004 and granted January 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2024.
  • 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.
FiledNovember 4, 2004
GrantedJanuary 17, 2012
Term endedNovember 4, 2024
Patent numberCA 2542912 C
Classification (IPC)B21D22/14

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 4, 2004Patent grantedJan 17, 2012Term endedNov 4, 2024

Sources & verification

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