Use of mixed alkaline earth - alkali metal systems as emissions reducing agents in compression ignition engines
CA 2227153 A1 · Owner: Jeffrey, Gareth Charles · Inventors: Jeffrey, Gareth Charles
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to fuel compositions containing a base fuel and a fuel additive, wherein the fuel additive comprises a mixture of calcium and either alkali metals alkaline earth metals other than calcium or mixtures thereof. The present invention also relates to a method for reducing emissions in engines burning said fuel compositions.
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 January 15, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 15, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 15, 2020.
- 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.