Active component for capturing basic nitrogen in catalytic cracking catalysts
CA 2099987 C · Owner: Consejo Superior De Investigaciones Cientificas · Inventors: Mocholi Castello, Francisco Andres; Corma Canos, Avelino
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Material used as matrix and active in catalysts for the catalytic cracking of heavy fractions of petroleum (FCC) consisting in a fibrous magnesian silicate of the sepiolite type modified by substitution of Mg2+ terminal by trivalent cations and which is active and selective for bottom conversion and for passivation of basic compounds of nitrogen present in food products.
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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 November 6, 1992 and granted August 31, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 6, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 6, 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.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.