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Expired Canadian patentCanada

High strength weldable al-mg alloy

CA 2617528 C · Owner: Normann, Andrew · Inventors: Normann, Andrew; Meijers, Steven Dirk; Spangel, Sabine Maria

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Abstract From the Canadian patent

An aluminium alloy product having high strength excellent corrosion , resistance and weldability having the following composition in wt.%:- Mg 3.5 to 6.0 Mn 0.4 to 1.2 Fe < 0.5 Si < 0.5 Cu < 0.15 Zr < 0.5 Cr < 0.3 Ti 0.03 to 0.2 Sc < 0.5 Zn < 1.7 Li < 0.5 Ag < 0.4 optionally one or more of the , following dispersoid forming elements selected from the group consisting of erbium, yttrium, hafnium, vanadium, each < 0.5 wt% and impurities or , incidental elements each < 0.05 total < 0.15 and the balance being aluminium.

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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

  • Filed August 14, 2006 and granted December 24, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 14, 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.
FiledAugust 14, 2006
GrantedDecember 24, 2013
Term endedAugust 14, 2026
Patent numberCA 2617528 C
Classification (IPC)C22C21/06 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedAug 14, 2006Patent grantedDec 24, 2013Term endedAug 14, 2026

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.