Additive composition for improving conductivity in fuel oils
CA 2520174 C · Owner: Infineum International Limited · Inventors: Jackson, Graham; Sutkowski, Andrew C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use of an additive composition to improve the conductivity of a fuel oil. The additive composition comprises a polymeric condensation product formed by the reaction of an aliphatic aldehyde or ketone or a reactive equivalent, with at least one ester of p-hydroxybenzoic acid.
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 September 16, 2005 and granted July 23, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.