Production of metal strip
CA 1111654 A · Owner: British Steel Corporation · Inventors: Armstrong, Brian M.; Spenceley, Gene D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing ferrous metal strip from iron ore comprising the steps of beneficiating the ore into a concentrate powder form, forming the powdered ore into pellets passing the, ore pellets through a furnace in the presence of a reducing gas acting as the sole or primary reductant and compacting the reduced pellets in the nip of a rolling mill to produce a strip of ferrous metal.
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 November 3, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 3, 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.