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Expired Canadian patentCanada

Fuel temperature control

CA 2175548 C · Owner: Hannah, Keith · Inventors: Hannah, Keith

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

An apparatus for controlling the temperature and pressure of liquid fuel supplied to a liquid coolant cooled internal combustion engine includes a metal block heat exchanger having a generally centrally aligned longitudinal bore extending generally longitudinally along a central axis between opposed first and second coolant apertures. The opposed first and second coolant apertures are adapted to receive opposed liquid coolant conduits for transporting liquid coolant, from the engine to a heat radiator in releasable, liquid coolant communicating engagement therein whereby liquid coolant may be passed in a coolant flow direction between the opposed first and second coolant apertures through …

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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 1, 1996 and granted September 2, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 1, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 1, 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.
FiledMay 1, 1996
GrantedSeptember 2, 1997
Term endedMay 1, 2016
Patent numberCA 2175548 C
Classification (IPC)F02M31/10

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedMay 1, 1996Patent grantedSep 2, 1997Term endedMay 1, 2016

Sources & verification

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