Catalyst preparation
CA 1160200 A · Owner: Grace (W.R.) & Co. · Inventors: Nozemack, Richard J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Zeolite containing cracking catalysts are prepared by combining an alumina stabilized crystalline zeolite with an inorganic oxide matrix. The alumina stabilized zeolite is obtained by precipitating hydrous alumina onto a finely divided zeolite under alkaline reaction conditions.
Read the whole patent
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
- Granted January 10, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 10, 2001.
- 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.