Demulsifiers for mixtures of middle distillates with fuel oils of vegetable or animal origin and water
CA 2493178 C · Owner: Neuhaus, Ulrike · Inventors: Braun, Renate; Leinweber, Dirk; Reimann, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Demulsifiers for mixtures of middle distillates with fuel oils of vegetable or animal origin and water The invention provides fuel oils comprising a major proportion of a mixture of A) a middle distillate fuel oil and B) a biofuel oil and also a minor proportion C) of an oil-soluble crosslinked block copolymer composed of C2- to C4- alkylene oxides.
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 January 14, 2005 and granted July 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 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.