High strength cast aluminum-beryllium alloys containing magnesium
CA 2246540 A1 · Owner: Brush Wellman Inc. · Inventors: Grensing, Fritz C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A high strength cast aluminum-beryllium alloy including magnesium represented by the formula (25-60 % A1) + (40-75 % Be) + (0.1-1.25 % Mg) + (0X5 %) + (0Y4 %) + (0Z0.75 %) = 100, wherein: X is at least one element selected from the group consisting of nickel, cobalt and copper; Y is at least one element selected from the group consisting of silicon and silver; and Z is at least one element selected from the group consisting of iron titanium, zirconium, boron, antimony, strontium germanium, scandium and the rare earth elements. A rotatable armset of an actuator consisting essentially of the above alloy. An actuator armset for a computer disk drive actuator (11) includes an armset …
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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 November 14, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 14, 2019.
- 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.