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Expired Canadian patentCanada

Fuel supply structure in engine

CA 2273243 C · Owner: Honda Giken Kogyo Kabushiki Kaisha · Inventors: Wada, Tetsu; Shidara, Sadafumi

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 intake manifold (85) having integrally a surge tank (82) a plurality of , intake pipes (83a to 83d) and a mount flange (84) is provided at the mount flange (84) with a plurality of fuel injection valves (94). A subtank (89) provided therein with a high pressure fuel tank (91) and provided outside thereof with a high pressure filter (93) for temporarily storing a fuel to be supplied to the fuel injection valves (94) is secured to intake pipes (83c 83d) by means of two bolts (106) and secured to a cylinder block (6) by means of two bolts (107). The high pressure tank (91) high pressure filter (93) and , the subtank (89) are beforehand assembled to the intake manifold (85) to make a …

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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 19, 1997 and granted December 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 2019.
  • 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 19, 1997
GrantedDecember 2, 2003
Term endedDecember 19, 2017
Patent numberCA 2273243 C
Classification (IPC)F02B67/00 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedDec 19, 1997Patent grantedDec 2, 2003Term endedDec 19, 2017

Sources & verification

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