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Expired Canadian patentCanada

Process container with cooling elements

CA 2525294 C · Owner: Maerz-Ofenbau Ag · Inventors: Loebner, Andreas; Puellenberg, Reinhard

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

In order to cool a process container (1) several cooling elements (5, 5', 5") , are fixed to the outer side of a metal container wall (2) by means of threaded bolts (21) that are , welded to the container wall (2) in several places. The clamping pressure of the screw , nuts (25) that are screwed on the threaded bolts (21) is sufficient to deform a relatively , thin base plate (6) of the cooling elements (5 5', 5"), including their , welded cooling channel (7) so that the cooling elements (5 5', 5") are pressed against the , outer side of the container wall (2). In order to achieve an additional improvement of heat transmission , from the container wall (2) to the cooling element (5 …

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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 May 27, 2004 and granted February 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 27, 2004
GrantedFebruary 7, 2012
Term endedMay 27, 2024
Patent numberCA 2525294 C
Classification (IPC)F27D1/12 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 27, 2004Patent grantedFeb 7, 2012Term endedMay 27, 2024

Sources & verification

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