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US 12,180,574 B1Granted
Tarnish resistant and age hardenable sterling silver alloy
AssigneesNational Chain Company, Enewton Design, LLC
InventorsJoseph Esposito, Grigory Raykhtsaum
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Abstract
A sterling silver alloy composition consisting of in parts by weight: at least 92.5% silver, 0.5%-1.2% palladium, 3.4%-4.8% copper, 0.5%-1.5% zinc, 0.1%-1.5% indium, wherein zinc and indium combined content is not greater than 2.4%, 0.3%-1% germanium, and 0.005%-0.05% silicon.
Claims6
A sterling silver alloy composition consisting of in parts by weight:
- at least 92.5% silver,
- 0.5%-1.2% palladium,
- 3.4%-4.8% copper,
- 0.5%-1.5% zinc,
- 0.1%-1.5% indium,
- wherein zinc and indium combined content is not greater than 2.4%,
- 0.3%-1% germanium,
- and
- 0.005%-0.05% silicon.
6 more elements
Dependencies are inferred from the claim text.