Process for the production of low-sulfur fuels
CA 2299152 C · Owner: Institut Francais Du Petrole · Inventors: Uzio, Denis; Marchal, Nathalie; Didillon, Blaise
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the production of gasoline with a low sulfur content comprising at least the two of the following stages: a) one stage involving the hydrogenation of unsaturated sulfur compounds b) one stage involving the decomposition of saturated sulfur compounds and possibly one pretreatment stage whose purpose is to hydrogenate the diolefins of the feedstock.
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 February 22, 2000 and granted May 10, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 22, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 22, 2022.
- 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.