US PATENT SUBCLASS 148 / 549
.~.~ Aluminum(Al) or aluminum base 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}
538  DF  .~ With casting or solidifying from melt {6}
549.~.~ Aluminum(Al) or aluminum base alloy {3}
550  DF  .~.~.~> With extruding or drawing
551  DF  .~.~.~> Continuous casting
552  DF  .~.~.~> With working

DEFINITION

Classification: 148/549

Aluminum (Al) or aluminum base alloy:

(under subclass 538) Process wherein the metal being cast is aluminum(Al) or an aluminum alloy containing greater than 50 percent aluminum.