Gold colored alloy composition with zero percent gold
US4895701A · kind A · utility
2Cited by
2References
9Claims
0Family size
Inventor
Key dates
| Filing date | Jan 9, 1989 |
| Grant date | Jan 23, 1990 |
| Priority date | — |
| Expiry date | Jan 9, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C30/02
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A gold colored, tarnish and corrosion resistant gold free alloy is disclosed, usable for jewelry, dental purposes and the like. The alloy consists essentially of 24 to 27 percent palladium, 19 to 22 percent indium, 5 to 30 percent copper, and the balance is essentially silver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.