US PATENT SUBCLASS 148 / 531
.~.~.~.~.~ Aluminum(Al) or aluminum base alloy


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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}
527  DF  .~.~ With metal next to or bonded to metal {4}
529  DF  .~.~.~ Iron(Fe) or iron base alloy present {2}
530  DF  .~.~.~.~ Next to nonferrous metal or nonferrous base alloy {3}
531.~.~.~.~.~ Aluminum(Al) or aluminum base alloy


DEFINITION

Classification: 148/531

Aluminum (Al) or aluminum base alloy:

(under subclass 530) Process wherein the nonferrous metal is aluminum(Al) or the nonferrous base alloy has greater than 50

percent aluminum.