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Expired Canadian patentCanada

An integrated process for the production of ultra low sulfur diesel and low sulfur fuel oil

CA 2552275 C · Owner: Kalnes, Tom N. · Inventors: Kalnes, Tom N.; Thakkar, Vasant P.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An integrated hydrocracking process which is capable of desulfurizing a heavy residual hydrocarbonaceous feedstock (5) and desulfurizing a feedstock (11) comprising diesel boiling range hydrocarbons to produce ultra low sulfur diesel (22) and low sulfur fuel oil (23).

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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 July 12, 2006 and granted December 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 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.
FiledJuly 12, 2006
GrantedDecember 10, 2013
Term endedJuly 12, 2026
Patent numberCA 2552275 C
Classification (IPC)C10G65/02 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 12, 2006Patent grantedDec 10, 2013Term endedJuly 12, 2026

Sources & verification

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