Aluminum alloy sheet product suitable for heat exchanger fins
CA 1192768 A · Owner: Aluminum Company Of America · Inventors: Rogers, Ralph W. Jr.; Vernam, William D.; Stumpf, Harry C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An aluminum base alloy product suitable for forming into wrought products including fin or tube stock for heat exchanger assemblies is disclosed. The alloy product contains essentially 2 to 13 wt.% Si, 4 max. wt.% Zn 0.005 to 2 wt.% Sr, up to 1 wt.% Fe and up to 1 wt.% Cu the balance essentially, aluminum and impurities the alloy product, when formed into a, wrought product having a substantially uniform distribution of relatively fine, generally equiaxed constituents comprised mainly of elemental silicon.
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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
- Granted September 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 3, 2002.
- 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.