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US 9,428,821 B2Granted
Gold alloys
AssigneeJostens, Inc.
InventorsTodd Cleabert Bridgeman, Suzanne M. Dauck
Life of this patent
Estimating the term…
Abstract
A gold alloy having, expressed by weight, about 24.5 to 25.5% Au, about 19.0 to 23.0% Ag, about 43.0 to 47.0% Cu, about 6.0 to 10.0% Zn, about 0.05 to 0.30% Si, and about 0.005 to 0.03% Ir. Alternatively, a alloy having, expressed by weight, about 16-17% Au, about 19-23% Ag, about 50-55% Cu, about 6-10% Zn, about 0.05-0.30% Si, and about 0.005-0.03% Ir.
Claims10
A very low karat gold alloy comprising, expressed by weight:
- no less than 24.5% Au;
- no less than 19.0% Ag;
- no less than 43.0% Cu;
- no less than 6.0% Zn;
- no less than 0.05% Si;
- and
- no less than 0.005% Ir.
4 more elements
A very low karat gold alloy comprising, expressed by weight:
- about 24.5 to 25.5% Au;
- about 19.0 to 23.0% Ag;
- about 43.0 to 47.0% Cu;
- about 6.0 to 10.0% Zn;
- about 0.05 to 0.30% Si;
- and
- about 0.005 to 0.03% Ir.
4 more elements
Dependencies are inferred from the claim text.