Method for forging rapidly solidified magnesium base metal alloy billet
CA 2084415 A1 · Owner: Chang, Chin-Fong · Inventors: Chang, Chin-Fong; Das, Santosh K.; Raybould, Derek
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A magnesium base metal component is forged from a billet by subjecting the billet to a forging process using multiple steps in a closed-die or an open-die forging and a forging temperature ranging from 200 ·C to 300 ·C. The billet is compacted from a rapidly solidified magnesium based alloy defined by the formula MgbalAlaZnbXc, wherein X is at least one element selected from the group consisting of manganese, cerium, neodymium praseodymium, and yttrium, ''a'' ranges from about 0 to 15 atom percent ''b'', ranges from about 0 to 4 atom percent ''c'' ranges from about 0.2, to 3 atom percent the balance being magnesium and incidental impurities, with the proviso that the sum of aluminum and …
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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 April 15, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 15, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 2013.
- 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.