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Expired Canadian patentCanada

Fuel injection supply system for multi-cylinder internal combustion engine

CA 1270164 C · Owner: Hitachi, Ltd. · Inventors: Takayama, Teruo; Yamauchi, Teruo

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 fuel injection supply system for an internal combustion engine provided with an even number more than four cylinders. The first intake manifold is connected to the first cylinder group comprising one half of the cylinders and the second intake manifold is connected to the second cylinder group comprising the other half of the cylinders. A passage collector member is provided which collects the intake passages so as to communicate the intake ports of the first and second manifolds each other and the first fuel supply device is disposed at the converging portion of the first intake manifold and the second fuel supply device is disposed at the converging portion of the second intake manifold.

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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 June 12, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 25, 1986
GrantedJune 12, 1990
Term endedJune 12, 2007
Patent numberCA 1270164 C
Classification (IPC)F02M29/00 +2 more

Timeline

Timeline From CIPO dates

1987199019931996199920022005Application filedMarch 25, 1986Patent grantedJune 12, 1990Term endedJune 12, 2007

Sources & verification

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