US PATENT SUBCLASS 148 / 523
.~.~.~ Of aluminum(Al) or aluminum alloy

Current as of: June, 1999
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148 /   HD   METAL TREATMENT

95  DF  PROCESS OF MODIFYING OR MAINTAINING INTERNAL PHYSICAL STRUCTURE (I.E., MICROSTRUCTURE) OR CHEMICAL PROPERTIES OF METAL, PROCESS OF REACTIVE COATING OF METAL AND PROCESS OF CHEMICAL-HEAT REMOVING (E.G., FLAME-CUTTING, ETC.) OR BURNING OF METAL {17}
516  DF  .~ Producing or treating layered, bonded, welded, or mechanically engaged article or stock as a final product {9}
522  DF  .~.~ With casting or solidifying from melt {1}
523.~.~.~ Of aluminum(Al) or aluminum alloy

DEFINITION

Classification: 148/523

Of aluminum (Al) or aluminum alloy:

(under subclass 522) Process wherein a metal or metal alloy being cast or solidified is aluminum or an alloy containing greater than 50 percent aluminum.