US PATENT SUBCLASS 148 / 285
.~.~.~ Oxide of aluminum, beryllium or magnesium formed

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}
240  DF  .~ Processes of coating utilizing a reactive composition which reacts with metal substrate or composition therefore {12}
284  DF  .~.~ Coating composition applied forms oxide coating {3}
285.~.~.~ Oxide of aluminum, beryllium or magnesium formed

DEFINITION

Classification: 148/285

Oxide of aluminum, beryllium or magnesium formed:

(under subclass 284) Subject matter wherein an oxide layer of aluminum, beryllium or magnesium is formed on an aluminum, beryllium or magnesium containing substrate.

(1) Note. This subclass provides for oxide formation, regardless of the degree of oxide formation or the amount of aluminum, beryllium, or magnesium in the metal containing substrate.