Gold alloy with color compatible with the 5N standard and method of production thereof

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United States of America Patent

PATENT NO 11725257
APP PUB NO 20200392605A1
SERIAL NO

16970914

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Abstract

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A Gold alloy for jewelry, comprising:

    Gold: in the amount comprised between 780‰ and 840‰ in weight;Copper: in the amount comprised between 125‰ and 167‰ in weight;Silver: in the amount comprised between 15‰ and 54‰ in weight;Platinum or Palladium, wherein the content of Palladium or Platinum is such that the assembly of Gold, Copper, Silver and Platinum or Gold, Copper, Silver and Palladium reaches a percentage at least equal to 980‰, and more preferably the 1000‰ in weight of the alloy;and wherein the so composed Gold alloy shows, under the conditions referred to in the ISO DIS 8654:2017 standard, a color compatible with the 5N alloy color standard.

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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
Nauer, Marco Morbio Inferiore, CH 4 3
Rossini, Marta Melide, CH 2 0

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