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Expired Canadian patentCanada

Hydroprocessing catalyst, preparation method thereof and use of same

CA 2595335 C · Owner: Humblot, Francis · Inventors: Brun, Claude; Dath, Jean-Pierre; Cholley, Thierry

CIPO record

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Abstract From the Canadian patent

The invention relates to a hydrocarbon hydroprocessing catalyst comprising a support based on at least one refractory oxide at least one metal from group VIII and at least one metal from group VIB. The inventive catalyst is characterised in that it also comprises at least one organic compound having formula (I) or (II) in which each R1 represents independently an alkyl group at C1-18 an alkenyl group at C2-18, an aryl group at C6-18 a cycloalkyl group at C3-8, an alkylaryl or arylalkyl group at C7-20 or the two R1groups together form a divalent group at C2-18 and R2 represents an alkylene group at C1-18 an arylene group at C6-18, a cycloalkylene group at C3-7 or a combination of same. The …

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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 January 19, 2006 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 19, 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.
FiledJanuary 19, 2006
GrantedJanuary 8, 2013
Term endedJanuary 19, 2026
Patent numberCA 2595335 C
Classification (IPC)B01J23/88 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJan 19, 2006Patent grantedJan 8, 2013Term endedJan 19, 2026

Sources & verification

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