Double aged rapidly solidified aluminum-lithium alloys
CA 2079327 A1 · Owner: Skinner, David J. · Inventors: Lasalle, Jerry C.; Skinner, David J.; Ramanan, V. R. V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A component consolidated from a rapidly solidified aluminum-lithium alloy containing copper magnesium and zirconium is , subjected to a preliminary aging treatment at a temperature of about 400 ·C to 500 ·C for a time period of about 0.5 to 10 hours; quenched in a fluid bath; and subjected to a final aging treatment at a temperature of about 100 ·C to 250 ·C for a time period ranging up to about 40 hours. The component exhibits increased strength and elongation, and is especially suited for use in lightweight structural parts for land vehicles and aerospace applications.
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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 January 25, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 25, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 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.