Al-zn-cu-mg aluminum base alloys and methods of manufacture and use
CA 2596190 C · Owner: Constellium Issoire · Inventors: Smith, Kenneth Paul; Dumont, David; Warner, Timothy
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rolled or forged Al-Zn-Cu-Mg aluminum-based alloy wrought product having a thickness from 2 to 10 inches. The product has been treated by solution heattreatment, quenching and aging, and the product comprises (in weight-%) :Zn 6.2 - 7.2, Mg 1.5 - 2.4, Cu 1.7 - 2.1. Fe 0 - 0.13 Si 0 - 0.10, Ti 0 - 0.06, Zr 0.06 - 0.13 Cr 0 - 0.04, Mn 0 - 0.04, impurities and other incidental elements <= 0.05 each. Alloys per se and aircraft and aerospace uses as well , as methods of making products are also disclosed.
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
- Filed February 10, 2006 and granted April 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.