US PATENT SUBCLASS 148 / 281
.~.~ Metal substrate contains elemental Ti, Zr, Nb, Ag, Ta, or W or alloy thereof

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}
281.~.~ Metal substrate contains elemental Ti, Zr, Nb, Ag, Ta, or W or alloy thereof

DEFINITION

Classification: 148/281

Metal substrate contains elemental Ti, Zr, Nb, Ag, Ta or W or alloy thereof:

(under subclass 240) Subject matter wherein the metal substrate contains elemental or an alloyed form of titanium, zirconium, niobium, silver, tantalum or tungsten.

(1) Note. This subclass provides for a metal substrate containing any of the above elements regardless of the amount of those elements therein.

(2) Note. The particular elements enumerated above need not be involved in the reaction process. It is sufficient for purposes of this subclass if the particular element is present in the substrate.