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Expired Canadian patentCanada

Hydrocarbon dehydrogenation catalyst

CA 2013423 C · Owner: Bricker, Jeffery C. · Inventors: Jan, Deng-Yang; Foresman, John M.; Bricker, Jeffery C.

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

A novel catalytic composition comprises a combination of a Group VIII nobel metal component, a Group IA or IIA metal component and a component, selected from the group consisting of tin germanium, lead, indium, gallium, thallium or mixtures thereof, with a theta-alumina support having a surface area of 80-120 m2/g, and an ABD of 0.5g/cm3 or more. The novel catalytic composite has particular utility as a hydrocarbon dehydrogenation catalyst.

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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 March 29, 1990 and granted August 25, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2010.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2012.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 29, 1990
GrantedAugust 25, 1998
Term endedMarch 29, 2010
Patent numberCA 2013423 C
Classification (IPC)B01J23/56 +2 more

Timeline

Timeline From CIPO dates

1991199319951997199920012003200520072009Application filedMarch 29, 1990Patent grantedAug 25, 1998Term endedMarch 29, 2010

Sources & verification

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