Cold rolled steel suitable for enamel coating and method for making
CA 1257789 A · Owner: Kawasaki Steel Corporation · Inventors: Tsunoyama, Kouzou; Ikehira, Junko; Takasaki, Junsuke
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A cold rolled steel sheet suitable for enamel coating is provided which consists essentially of on a weight basis, C up to 0.005%, P up to 0.02% S up to 0.03%, N 0.005% to 0.012%, Ti up to 0.15% and Ti ? (48/12C + 48/14N + 48/32S)%, Cu up to 0.08% and, at least one member selected from As Sb, and Bi in a total, amount of 0.003% to 0.03% or Se and/or Te in a total amount of 0.003% to 0.05% or their combination in a total amount of 0.002 to 0.05%, the balance being Fe and concomitant impurities. The steel is produced by continuously casting a molten steel having the same composition as above hot, rolling and then cold rolling the steel and continuously, annealing the steel at a temperature in …
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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 July 25, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 25, 2006.
- 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.