Use of additives for improved engine operation
CA 2409022 A1 · Owner: Caprotti, Rinaldo · Inventors: Leest, Peter Van; Caprotti, Rinaldo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Engine operation is improved by means of detergent additives. An additive comprising, or obtainable by admixing, A or B or both wherein: A is a metalcontaining detergent, and B is a non metal-containing detergent is used in an , internal combustion engine lubricated by means of a separate lubricating oil system, to enhance the properties of the lubricating oil of the engine through entrainment therein the combustion chamber during operation of the engine.
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 May 14, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 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.