Aluminum alloy product having improved combinations of strength, toughness and corrosion resistance
CA 1340618 C · Owner: Rioja, Roberto J. · Inventors: Reiser, David B.; Hunt, Warren H. Jr.; Angers, Lynette M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An alloy product having improved combinations of strength, density, toughness and corrosion resistance consists essentially of about 7 to 12% zinc about 1.5 to 2.7%, magnesium, about 1.75 to 3% copper one or more elements, selected from 0.05 to 0.2% zirconium 0.05 to 0.4% manganese, 0.03 to 0.2% vanadium and 0.03 to 0.5% hafnium the total of, said elements not exceeding about 1% the balance aluminum and, incidental elements and impurities. A preferred product consists essentially of about 7.6 to 8.6% zinc about 1.6 to, 2.2% magnesium, about 2 to 2.8% copper and at least one element selected from zirconium, vanadium and hafnium present in an amount not exceeding about 0.2%, the balance …
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 29, 1999. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 2016.
- 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.