US PATENT SUBCLASS 210 / 510.1
.~.~ Porous unitary mass

Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

348  DF  FILTER {25}
500.1  DF  .~ Material {6}
510.1.~.~ Porous unitary mass

DEFINITION

Classification: 210/510.1

Porous unitary mass:

(under subclass 500) Compositions in which the material is held together by fusing or sintering.

SEE OR SEARCH CLASS

75, Specialized Metallurgical Processes, Compositions for Use Therein, Consolidated Metal Powder Compositions, and Loose Metal Particulate Mixtures,

.5, for metal powders.

106, Compositions: Coating or Plastic,

122, 601+ and 672+ for coating or plastic pore forming compositions.

166, Wells,

228, for porous material well screens. 419, Powder Metallurgy Processes,

2, for processes of making sintered porous articles from metal.

428, Stock Material or Miscellaneous Articles,

566, for metal particle-containing stock material distinguished by an interconnected void structure.

521, Synthetic Resins or Natural Rubbers,

50+, for pore forming, per se in a synthetic resin or natural rubber composition.