US PATENT SUBCLASS 210 / 504
.~.~.~ With adhered coating or impregnant

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

348  DF  FILTER {25}
500.1  DF  .~ Material {6}
503  DF  .~.~ Diverse granular or fibrous {2}
504.~.~.~ With adhered coating or impregnant

DEFINITION

Classification: 210/504

(under subclass 503) Compositions having a coating or impregnant, permanently adhered thereto.

SEE OR SEARCH CLASS

428, Stock Material or Miscellaneous Articles,

323+, for stock material product in the form of a composite web or sheet embodying a component having structurally defined fibers or particles, respectively, which product may be coated or impregnated, subclasses 357+ for a mass or layer of structurally defined or coated elements (e.g., fibers filaments or particles, etc.), which may be coated or impregnated in addition to the defined structure.

442, Fabric (Woven, Knitted, or Nonwoven Textile or Cloth, etc.),

59+, for a coated or impregnated fabric.