Integrated lubricant upgrading process
CA 2426025 C · Owner: Carroll, Michael B. · Inventors: Schleicher, Gary P.; Boyle, Joseph P.; Carroll, Michael B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for upgrading oil feedstock wherein the feedstock is hydrotreated hydrocracked, and flashed and/or distilled. The bottoms are then vacuum distilled to adjust viscosity and volatility. The refined feed is then extracted, dewaxed, and cascaded to a hydrofinishing step where it is , contacted with a catalyst having a metal hydrogenation function in order to produce lubricant products.
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 October 19, 2001 and granted August 30, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 19, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 19, 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.