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Expired Canadian patentCanada

Small-sized service module for aluminium electrolysis factories

CA 2570757 C · Owner: E.C.L. · Inventors: Van Acker, Alain; David, Stephane

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

The invention relates to a service module for factories producing aluminium by fusion electrolysis. The turret (9) of the inventive service module (7) is provided with a determined tool set wherein each tool (101, 102, 103) is mounted on a telescopic arm (111 112, 113) which is fixed to the turret (9) by a hinge support (121 122, 123) which enables said telescopic arm to be perpendicularly movable with respect to a determined hinge point without rotating around the main axis thereof. Said telescopic arms are interconnected by a mechanical connection device (200) which maintains the relative angular deviation between the perpendicular movements thereof within a given tolerance range. Said …

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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 June 22, 2005 and granted April 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 22, 2025.
  • 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.
FiledJune 22, 2005
GrantedApril 23, 2013
Term endedJune 22, 2025
Patent numberCA 2570757 C
Classification (IPC)C25C3/14

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 22, 2005Patent grantedApril 23, 2013Term endedJune 22, 2025

Sources & verification

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