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Expired Canadian patentCanada

A fuel composition containing an alkylene oxide-adducted hydrocarbyl amide having reduced amine by-products

CA 2541797 C · Owner: Simard, Francois · Inventors: Graskow, Brian R.; Cherpeck, Richard E.; Simard, Francois

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Abstract From the Canadian patent

A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and an alkylene oxide-adducted hydrocarbyl amide reaction product having from about 3 to 50 moles of alkylene oxide per mole of hydrocarbyl amide wherein the reaction product is prepared by (a) first reacting a fatty acid or fatty acid lower alkyl ester with ammonia or a mono- or di-hydroxy hydrocarbyl amine and (b) subsequently reacting the resulting intermediate with an alkylene oxide to provide a reaction product comprising the alkylene oxide-adducted hydrocarbyl amide a mixture of mono- and di-ester products and amine by-products, wherein the amount of amine by-products in the reaction …

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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 April 5, 2006 and granted September 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 5, 2026.
  • 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.
FiledApril 5, 2006
GrantedSeptember 10, 2013
Term endedApril 5, 2026
Patent numberCA 2541797 C
Classification (IPC)C10L1/22 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 5, 2006Patent grantedSep 10, 2013Term endedApril 5, 2026

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.