Catalyst supports
CA 1104111 A · Owner: United Kingdom Atomic Energy Authority · Inventors: Antill, John E.; Cairns, James A.; Noakes, Michael L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of manufacturing a device for use in the treatment of fluid and in particular a supported catalyst for motor vehicle exhaust gas purification. For this short lengths of wire of an aluminium containing iron based alloy with a smooth surface free from edges or sharp corners are wound into helical coil components in which contact between adjacent turns of the wire in the helical coil is avoided. The helical coil components are contacted with a dispersion in a liquid medium of a refractory material and a catalytic material. Excess liquid is removed by shaking followed by drying and firing and assembling the components in a container having inlet and outlet gas passageways.
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 June 30, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 30, 1998.
- 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.