Aluminum alloy sheet stock
CA 2091187 A1 · Owner: Golden Aluminum Company · Inventors: Marsh, Ivan M.; Mcauliffe, Donald C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aluminum sheet is provided. The strip stock is suitable for the fabrication of both container ends and container bodies in thinner gauges than are typically employed has low earing, characteristics and may be derived from recycled aluminum scrap. An alloy particuarly suited to the fabrication of the aluminum sheet preferably has a magnesium concentration of from about 1.9 to about 2.8 weight percent and a manganese concentration of from about 0.9 to about 1.6 weight percent. A process particularly suited to the fabrication of the aluminum sheet preferably includes continuous chill block casting the alloy metl into a strip hot rolling the , strip to a first thickness annealing the hot …
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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 September 5, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 5, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 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.