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Expired Canadian patentCanada

System for heating fuel oil

CA 1115151 A · Owner: Nationwide Carriers Incorporated · Inventors: Veach, Billy B.R.; Connor, Frank G.

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

A mechanism (10) for heating diesel fuel in a diesel engine vehicle is disclosed. The mechanism (10) includes a heat exchange conduit (18), a portion of which is adapted to be held in the interior of a fuel tank (12) of a diesel engine (16). An inlet conduit (42) connects an inlet end (30) of the heat exchange conduit (18) to a water manifold (44) of the diesel engine (16). An outlet conduit (46) connects an outlet end (32) of the heat exchange conduit (18) to the engine block (48) of the diesel engine (16). In this manner, coolant liquid from the diesel engine (16) is passed through the heat exchange conduit (18) to heat diesel fuel contained in the fuel tank (12).

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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

  • Granted December 29, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 29, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 7, 1979
GrantedDecember 29, 1981
Term endedDecember 29, 1998
Patent numberCA 1115151 A
Classification (IPC)F02M31/10 +2 more

Timeline

Timeline From CIPO dates

1980198219841986198819901992199419961998Application filedAug 7, 1979Patent grantedDec 29, 1981Term endedDec 29, 1998

Sources & verification

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