US PATENT SUBCLASS 75 / 569
.~.~.~.~.~.~ Iron(Fe) containing compound

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
414  DF  .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7}
433  DF  .~.~.~ Iron(Fe) {18}
507  DF  .~.~.~.~ Melting Iron(Fe) or treating molten Iron {12}
560  DF  .~.~.~.~.~ Treating premelted Iron(Fe) or slag layer thereon by adding solid agent, slag, or flux {9}
569.~.~.~.~.~.~ Iron(Fe) containing compound

DEFINITION

Classification: 75/569

Iron (Fe) containing compound:

(under subclass 560) Process wherein an Iron (Fe) containing compound (e.g., ore, scale, Iron oxide, etc.) is present in the solid agent, separately prepared slag, or flux.