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Expired Canadian patentCanada

Electrically actuated gaseous fuel timing and metering device

CA 2016284 C · Owner: Green, Christopher J. · Inventors: Green, Christopher J.; Wallace, James S.

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 device for timing and metering gaseous fuels into an internal combustion engine has a cylindrical solenoid cavity with a portion projecting away from the cavity containing a bore coaxial with the cylindrical cavity. The portion also has gas passageways. An injector tip is secured to the portion so that it can be adjusted in position toward and away from the cavity. The injector tip has an orifice, and a valve head on a pintle moving in the bore is adapted to open and close the orifice. The other end of the pintle is secured to the armature of a multipole solenoid which includes a plurality of plate-like, spaced ribs covering a substantially circular configuration and located within the …

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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 8, 1990 and granted May 18, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 8, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 8, 2012.
  • 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 8, 1990
GrantedMay 18, 1999
Term endedMay 8, 2010
Patent numberCA 2016284 C
Classification (IPC)F02M67/14

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMay 8, 1990Patent grantedMay 18, 1999Term endedMay 8, 2010

Sources & verification

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