Discoloration-resistant gold alloy

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United States of America Patent

PATENT NO 10683570
APP PUB NO 20180312953A1
SERIAL NO

15995750

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Abstract

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Alloy for the manufacturing of jewels or clock components with minimum concentrations of gold of 75 wt %, of copper between 5% and 21%, of silver between 0% and 21%, of iron between 0.5% and 4% and vanadium between 0.1% and 2.0%, intended to increase the tarnishing-resistance of alloys with a minimum content of gold of 75 wt % under environments in which Sulphur- and chlorine-compounds are present.

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Patent Owner(s)

Patent OwnerAddress
ARGOR-HERAEUS SAVIA MOREE 14 MENDRISIO CH-6850

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Arnaboldi, Sergio Suello, IT 4 3
Ghiringhelli, Stefano Luisago Como, IT 2 3
Nauer, Marco Morbio Inferiore, CH 4 3

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