Hot-dip aluminium coated steel sheet having excellent corrosion resistance and heat resistance
CA 1321906 C · Owner: Okada, Nobuyoshi · Inventors: Asakawa, Kenichi; Ohmori, Takayuki; Okada, Nobuyoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A hot-dip aluminium coated steel sheet having excellent corrosion resistance and heat resistance comprising a steel substrate containing 3 to 18% chromium not more than 0.02% carbon, 0.1 to 1.5% manganese 0.005, to 0.08% aluminium, not more than 0.1% silicon with the, balance being iron and unavoidable impurities and, aluminium coating on said sheet substrate. The coated sheet may further comprises a coating layer of nickel or nickel-iron alloy (Ni: 1 to 99%) beneath the aluminium coating, or an A?-Fe-Si-Ni-Cr alloy coating layer of 1 to 10µ in thickness and containing 0.05 to 5% nickel 0.2 to 10% chromium, beneath the aluminium coating.
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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 September 7, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 7, 2010.
- 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.