US PATENT SUBCLASS 422 / 43
.~.~.~.~ Of water

Current as of: June, 1999
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422 /   HD   CHEMICAL APPARATUS AND PROCESS DISINFECTING, DEODORIZING, PRESERVING, OR STERILIZING

1  DF  PROCESS DISINFECTING, PRESERVING, DEODORIZING, OR STERILIZING {15}
40  DF  .~ Process of storage or protection {1}
41  DF  .~.~ Of liquid {1}
42  DF  .~.~.~ By preventing evaporation {1}
43.~.~.~.~ Of water

DEFINITION

Classification: 422/43

Of water:

(under subclass 42) Process wherein water is the liquid protected against evaporation.

SEE OR SEARCH THIS CLASS, SUBCLASS:

900, for art collections pertaining to subclasses 1-43.

SEE OR SEARCH CLASS

516, Colloid Systems and Wetting Agents; Subcombinations Thereof; Processes of Making, Stabilizing, Breaking, or Inhibiting,

9+, for continuous liquid phase colloid systems (e.g., foams, emulsions, suspensions, dispersions) or agents for such systems or making or stabilizing such systems or agents, when generically claimed or when there is no hierarchically superior provision in the USPC for the specifically claimed art.