Process for preparation of fuels and lubes in a single integrated hydrocracking system
CA 2397239 C · Owner: Cambern, Paul D. · Inventors: Cambern, Paul D.; Cash, Dennis R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An integrated distillate hydrocracking process produces one or more fuel products and one or more tube products from a first reaction stage. Heavy fractions from the first stage which are not recovered as lube products are cracked to fuels in a second reaction stage. This invention is intended to provide a full range of lube streams over a wide viscosity range and a wide viscosity index range from a fuels hydrocracker, in addition to high yields of high quality fuels.
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 August 9, 2002 and granted June 21, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 9, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 9, 2024.
- 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.