US PATENT SUBCLASS 75 / 248
.~.~.~ Base metal confined to Tungsten(W)

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

300  DF  COMPOSITIONS {5}
228  DF  .~ Consolidated metal powder compositions {4}
245  DF  .~.~ Base metal one or more Transition metal {2}
248.~.~.~ Base metal confined to Tungsten(W)

DEFINITION

Classification: 75/248

Base metal confined to Tungsten (W):

(under subclass 245) Composition requiring half or more of the composition, by weight, to be tungsten.

(1) Note. Where Tungsten (W) is an alternative base metal to another transition metal, e.g., where the claims allow the base metal to be selected from Tungsten (W) and Molybdenum (Mo), the patent is placed in subclass 245 and is not cross-referenced to this subclass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

245, to complete a search for consolidated metal powder compositions having a tungsten base.

SEE OR SEARCH CLASS

252, Compositions,

301.5, for a fluorescent or phosphorescent composition containing tungsten, and subclass 515 for an electrically conductive or emissive composition containing free tungsten.

420, Alloys or Metallic Compositions, 430+, for a tungsten base alloy made by complete melting (fusion) techniques.