Gasoline composition
CA 2530296 C · Owner: Cracknell, Roger Francis · Inventors: Cracknell, Roger Francis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a gasoline composition comprising a hydrocarbon base fuel containing 5 to 20% v olefins, not greater than 5% v olefins of at least 10 carbon atoms, not greater than 5% v aromatics of at least 10 carbon atoms initial boiling point in the range 24 to 450C T10 in the range 38 to 600C, T50 in the range 77 to 1100C T90 in the range 130 to 1900C and final boiling point not greater than 2200C; a method of operating an automobile using the gasoline composition as fuel; and use of gasoline composition as fuel with improved stability of engine lubricant and with reduced frequency of engine oil changes.
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 June 17, 2004 and granted July 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 17, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 17, 2026.
- 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.