Trunk piston engine lubrication
CA 2357592 A1 · Owner: Garner, Terence · Inventors: Dunn, Adrian; Garner, Terence; Chambard, Laurent
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lubricant suitable for use in a trunk piston diesel engine characterised by a power output, of 200 kW or greater. The trunk piston diesel engine may be for use in marine power, generation or rail traction applications. The lubricant comprises a basestock of lubricating, viscosity, an overbased metal detergent preferably having an ash content of , at least 0.85% sulfated ash, and an ashless or metal-free auxiliary additive comprising at least one of: an, oil-soluble sulfurized alkylphenol a phosphorosulfurized or sulfurized , hydrocarbon a, sulfide of an oil, a fat or a polyolefin or an amine phosphate.
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 September 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 21, 2023.
- 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.