Diesel fuel compositions
CA 2510889 C · Owner: Shell Internationale Research Maatschappij B.V. · Inventors: Stephenson, Trevor; Lloyd, David Hugh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of a Fischer-Tropsch derived fuel in a fuel composition for the , purpose of improving the responsiveness of a compression ignition engine such , as a turbocharged direct injection diesel engine and/or a vehicle which is , powered by said engine into which engine the fuel composition is introduced; a method of improving the responsiveness of such an engine and/or vehicle powered by such an engine by replacing in said engine a fuel composition which contains no Fischer-Tropsch derived fuel by a Fischer-Tropsch derived fuel or a fuel composition which contains a Fischer-Tropsch derived fuel; and a method of operating such an engine and/or vehicle which involves introducing into a …
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 December 19, 2003 and granted October 23, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 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.