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Canadian application, no grantCanada

Activated zeolite beta catalyst and isomerization process therefor

CA 2058735 A1 · Owner: Flanigen, Edith M. · Inventors: Skeels, Gary W.; Flanigen, Edith M.

CIPO record

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Abstract From the Canadian patent

ACTIVATED ZEOLITE BETA CATALYST, AND ISOMERIZATION PROCESS THEREFOR" ABSTRACT, Normal paraffin hydrocarbons are isomerized to produce products containing non-normal hydrocarbons using a novel zeolite beta catalyst that has been activated in order to enhance its catalytic properties by treating at an activation temperature effective to substantially reduce the concentration of strong acid species, i.e. hydronium cations without substantially reducing theconcentration of weak acid species i.e. hydroxoaluminum cations, both of said strong acid species and weak acid species being initially present on the catalyst prior to activation. The isomerization step is preferably thereafter conducted at …

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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 3, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 3, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 3, 2014.
  • 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 3, 1992
GrantedNo grant recorded
Term endedJanuary 3, 2012
Patent numberCA 2058735 A1
Classification (IPC)B01J29/06 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedJan 3, 1992Term endedJan 3, 2012

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