US PATENT SUBCLASS 429 / 250
.~.~.~ And wetting agent or surface acting agent

Current as of: June, 1999
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429 /   HD   CHEMISTRY: ELECTRICAL CURRENT PRODUCING APPARATUS, PRODUCT, AND PROCESS

122  DF  CURRENT PRODUCING CELL, ELEMENTS, SUBCOMBINATIONS AND COMPOSITIONS FOR USE THEREWITH AND ADJUNCTS {16}
247  DF  .~ Separator, retainer, spacer or materials for use therewith {2}
249  DF  .~.~ Organic material {5}
250.~.~.~ And wetting agent or surface acting agent

DEFINITION

Classification: 429/250

(under subclass 249) Apparatus in combination with a wetting agent or surfactant.

SEE OR SEARCH CLASS

516, Colloid Systems and Wetting Agents; Subcombinations

Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,

198+, for wetting agents (e.g., spreading, penetrating, leveling) or methods of making such agents, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.