Fuel injection system
CA 2096510 C · Owner: Nikolai, Bernard E. · Inventors: Nikolai, Bernard E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A control circuit for variably modifying the rate of metered fuel flow to an engine by fuel injection apparatus having fuel injector means for supplying metered fuel to the engine in accordance with control signals provided in response to the speed of the engine and in response to the operating temperature of the engine and further in response to the position of a throttle valve variably positionable within an induction pasage leading to the engine, comprising oxygen sensor means for sensing exhaust gas from the engine and producing a signal in response thereto to indicate whether the fuel-air mixture supplied to the engine is too lean in terms of fuel or too rich in terms of fuel, and …
Read the whole patent
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 18, 1993 and granted October 14, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 18, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 18, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.