Alloy for coins
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United States of America Patent
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-
Feb 24, 1987
Grant Date -
N/A
app pub date -
Oct 30, 1984
filing date -
Mar 1, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A coin, a coin blank or metal strip for the production of a coin or a coin blank having as its surface a copper based alloy containing between 15% and 30% (by wt) zinc, between 2% and 7% (by wt) tin and, optionally, between 2% and 7% (by wt) nickel. The alloy is gold-colored, tarnish resistant, fabricable and wear resistant.
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