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Expired Canadian patentCanada

Handling device for hoods of a cell for electrolytic aluminium production

CA 2591495 C · Owner: Demeulenaere, Ludovic · Inventors: Demeulenaere, Ludovic; Van Acker, Alain

CIPO record

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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 device (100) for handling the hoods (33) of a cell for producing aluminium by fused bath electrolysis comprising a positioning device (110) and a hood gripping system (160). Said positioning device (110) comprises a vertically guiding member (101) a movable support (120) which is mounted on said guiding member (101) in such a way that it is displaceable at least in a vertical direction by using a hinged arm (130) a first sub-frame (140) which is mounted on the hinged arm (130) in such a way that it is pivotable around a first axis of rotation (A) which is substantially horizontal in operation wherein said hinged arm (130) is at least remotable from and closable to …

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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 December 20, 2005 and granted September 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 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.
FiledDecember 20, 2005
GrantedSeptember 24, 2013
Term endedDecember 20, 2025
Patent numberCA 2591495 C
Classification (IPC)C25C3/10 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 20, 2005Patent grantedSep 24, 2013Term endedDec 20, 2025

Sources & verification

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