US PATENT SUBCLASS 73 / 61.54
.~.~.~.~ Paper or thin layer type

Current as of: June, 1999
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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}
61.43  DF  .~.~ Liquid constituent of a liquid mixture {9}
61.52  DF  .~.~.~ Chromatography {6}
61.54.~.~.~.~ Paper or thin layer type

DEFINITION

Classification: 73/61.54

Paper or thin layer type:

(under subclass 61.52) Subject matter wherein the sorbent is a paper or other thin layer material.

SEE OR SEARCH CLASS

210, Liquid Purification or Separation,

198.3, for liquid separation using the layer chromatography.

436, Chemistry: Analytical and Immunological Testing, subclass

162, for subject of that class type utilizing paper or thin layer plate chromatography.