Process for coating a refractory support with an active metal oxide film
CA 1061313 A · Owner: Air Products And Chemicals · Inventors: Retallick, William B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for preparing a catalyst support comprises the steps of:, (1) dipping a monolithic structure into a suspension of an active metal oxide, (2) removing the resulting coated structure from the suspension, (3) spinning the coated structure until essentially all of the excess suspension is removed to leave an active metal, oxide film of n substantially uniform thickness, and, (4) calcining the coated structure to a temperature in the range of 750° to 1800°F. the resulting product is particularly useful as a support for automotive emission control catalyses.
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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
- Granted August 28, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 28, 1996.
- 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.