Alloys or metallic compositions – Silver base – Copper containing
Reexamination Certificate
2006-10-31
2006-10-31
Wyszomiersk, George (Department: 1742)
Alloys or metallic compositions
Silver base
Copper containing
C420S502000
Reexamination Certificate
active
07128871
ABSTRACT:
A silver-colored, tarnish-resistant, corrosion-resistant alloy is provided. The alloy includes 92.5–95% silver, combined with a master alloy of 24–34% zinc; 60–74% copper; 0.5–1.8% silicon; 0.0–8.0% tin, or 0.0–1.5% indium, wherein percentages are in terms of weight. The alloy can be used for jewelry items, tableware items, dental items or other items that should resist tarnishing or corrosion and which require a non-brittle alloy.
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Morillo Janelle
Sterilite LLC
Vedder Price Kaufman & Kammholz
Wyszomiersk George
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