Metal treatment – Process of modifying or maintaining internal physical... – Heating or cooling of solid metal
Reexamination Certificate
2008-07-08
2008-07-08
Sheehan, John P. (Department: 1793)
Metal treatment
Process of modifying or maintaining internal physical...
Heating or cooling of solid metal
C148S430000, C420S501000
Reexamination Certificate
active
11131090
ABSTRACT:
A method of manufacturing a hard precious metal alloy member comprising casting a material consisting essentially of a gold alloy, which has a gold content of from 37.50 to 98.45 wt %, and contains gadolinium in an amount of not less than 50 ppm, but less than 1,5000 ppm; subjecting the material to a solution heat treatment; and subjecting the material to an aging treatment after the solution heat treatment.
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Frishauf Holtz Goodman & Chick P.C.
Sheehan John P.
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