Additive concentrate for fuel compositions
CA 2265439 A1 · Owner: Exxon Research And Engineering Company · Inventors: Mclean, Gail
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An additive concentrate for use in fuels especially in gasoline for internal , combustion engines comprising (a) 0.2 to 10 wt.% ashless friction modifier which is liquid at room temperature and pressure selected from (i) nbutylamine oleate or derivatives thereof (ii) a substance comprising tall oil , fatty acid or derivatives thereof and (iii) mixtures of (i) and (ii); (b) 10 to 80 wt.% deposit inhibitor, and (c) carrier fluid. The particular selection of friction modifier (a) enables a stable additive concentrate to be formulated without the need for additional solubilising agent for the friction modifier, whilst containing sufficient friction modifier to achieve a significant …
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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 September 11, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 11, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 11, 2019.
- 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.