Catalyst
CA 1269360 C · Owner: Williamson, James Georges · Inventors: Short, Glyn David; Chinchen, Godfrey Charles; Williamson, James Georges
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Catalyst, A catalyst suitable for use in catalytic shift or, methanol synthesis, comprises copper zinc oxide, magnesia, and, at least one trivalent metal oxide e.g. alumina. The amount, of magnesia is such that the magnesium atoms constitute 0.2 to 7% of the total number of copper, zinc and magnesium atoms.
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 May 22, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 22, 2007.
- 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.