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Expired Canadian patentCanada

Tube and shell heat exchanger with baffle

CA 2241618 C · Owner: Cesaroni, Anthony Joseph · Inventors: Cesaroni, Anthony Joseph

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

A tube and shell heat exchanger having inlet and outlet manifolds (6, 7), a plurality of tubes (3) extending between the manifolds and a shell (2) extending between the manifolds and enveloping the tubes. The tube and shell heat exchanger has at least one baffle (16) through which the tubes (3) pass to locate and maintain the tubes in a spaced-apart relationship. The baffle (16) is comprised substantially in the shape of a helix of polymeric material that extends from the axis of the helix to the periphery of the helix. The tubes (3) pass through the material in a spaced-apart relationship with respect to each other and are spaced apart from the axis of the helix. The tube and …

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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 24, 1996 and granted July 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 24, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 24, 2018.
  • 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 24, 1996
GrantedJuly 9, 2002
Term endedDecember 24, 2016
Patent numberCA 2241618 C
Classification (IPC)F28F9/22 +1 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedDec 24, 1996Patent grantedJuly 9, 2002Term endedDec 24, 2016

Sources & verification

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