US PATENT SUBCLASS 73 / 61.72
.~.~.~ By separation and subsequent measurement (e.g., by weighing, X-ray or microscope, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


73 /   HD   MEASURING AND TESTING

53.01  DF  LIQUID ANALYSIS OR ANALYSIS OF THE SUSPENSION OF SOLIDS IN A LIQUID {15}
61.41  DF  .~ Content or effect of a constituent of a liquid mixture {8}
61.71  DF  .~.~ For measuring solid components (e.g., particles) {3}
61.72.~.~.~ By separation and subsequent measurement (e.g., by weighing, X-ray or microscope, etc.)

DEFINITION

Classification: 73/61.72

By separation and subsequent measurement (e.g., by weighing, X-ray or microscope, etc.):

(under subclass 61.71) Subject matter including means for isolating the solid from the liquid and wherein the determination is made subsequent to the isolation.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation, appropriate subclass, for the separation of liquid components, per se.

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting, appropriate subclasses for colloid systems or agents for such systems or making or stabilizing such systems or agents,

113+, for compositions for or subcombination compositions for or breaking of or inhibiting of colloid systems (e.g., foam breaking, emulsion breaking, dispersion inhibiting, suspension settling, gel breaking, smoke suppressing, coagulating, flocculating), in each instance, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.