Alloys or metallic compositions – Cobalt base – Chromium containing
Reexamination Certificate
2002-07-19
2003-09-02
Sheehan, John (Department: 1742)
Alloys or metallic compositions
Cobalt base
Chromium containing
C420S436000, C420S587000, C420S588000, C420S589000, C148S425000, C148S442000
Reexamination Certificate
active
06613275
ABSTRACT:
The present invention relates to metal alloys. It concerns, more particularly, a non-precious dental alloy, i.e. including only a small proportion of precious metals (gold, silver . . . ), typically less than 20% in weight.
REFERENCES:
patent: 4514359 (1985-04-01), Andrews
patent: 4911762 (1990-03-01), Steinemann
patent: 5200002 (1993-04-01), Hilzinger
patent: 2002/0041820 (2002-04-01), Prasad
patent: 58-110633 (1983-07-01), None
Metalor Technologies SA
Sheehan John
Van Tassel & Associates
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