Expired Canadian patentCanada
Fuel oil compositions
CA 2182995 C · Owner: Dilworth, Brid · Inventors: Caprotti, Rinaldo; Dilworth, Brid; Davies, Brian William
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The lubricity of low sulphur fuels is enhanced by incoporation of a lubricity enhancing additive in combination with a polyoxyalkylene compound.
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 13, 1995 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 13, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 13, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 13, 1995
GrantedApril 8, 2003
Term endedDecember 13, 2015
Patent numberCA 2182995 C
Classification (IPC)C10L1/18 +2 more
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.