A method of using a fuel additive composition for improving acceleration performance
CA 2454713 C · Owner: Chevrontexaco Japan Ltd. · Inventors: Ohta, Satoshi; Umehara, Katsumi; Watanabe, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fuel additive composition containing at least one amide compound selected from the group consisting of a fatty acid alkanol amide and a hydrocarbyl amide, and a polyalkylene-oxide. The fuel additive composition is surprisingly useful for improving the acceleration response and the driving performance of vehicles having internal combustion engines when used as fuel additives in hydrocarbon-based fuels, such as gasoline fuel or diesel fuel.
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 December 31, 2003 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 31, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 31, 2025.
- 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.