Use of an oxygenated product as a substitute of gas oil in diesel engines
CA 2449331 C · Owner: Sanfilippo, Domenico · Inventors: Patrini, Renata; Marchionna, Mario; Sanfilippo, Domenico
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Use of a liquid oxygenated product with a cetane number higher than 50 consisting of one ar more compounds selected from dialkyl-polyformals represented by the formula RO(CH2O)m R wherein R is an alkyl chain C n H2n+1 m is an integer equal to or higher than 2 n is an integer between 1 and 10, as a substitute of gas oil in diesel engines.
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 November 13, 2003 and granted July 19, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2025.
- 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.