Jewelry alloy
US4264359A · kind A · utility
5Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1979 |
| Grant date | Apr 28, 1981 |
| Priority date | — |
| Expiry date | Aug 8, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C30/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An alloy of gold, palladium, silver, copper, zinc and a small quantity of boron is provided to produce an alloy having a pleasing yellow color, high tarnish resistance and a hardness suitable for use as a material for rings and similar jewelry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.