US PATENT SUBCLASS 239 / 14.1
WEATHER CONTROL


Current as of: June, 1999
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239 /   HD   FLUID SPRINKLING, SPRAYING, AND DIFFUSING

14.1WEATHER CONTROL {1}
14.2  DF  .~> Snowmaking


DEFINITION

Classification: 239/14.1

WEATHER CONTROL:

(under the class definition) Apparatus claimed as particularly adapted for precipitating atmospheric moisture from clouds or fog. This is the generic locus for atmospheric moisture precipitating apparatus but patents claiming this subject matter are generally classified in some other class on the basis of their claimed proximate functions.

(1) Note. Apparatus classifiable in some other class on a more proximate basis does not become subject matter for this subclass merely because it is stated that weather control is involved, e.g., a fan or fire pot to disperse fog or prevent frost, but only if there is no other basis for classification or if some detail is included and accordingly recognizable only for weather control.

SEE OR SEARCH THIS CLASS, SUBCLASS:

2.1+, for processes of weather control or modification.

SEE OR SEARCH CLASS

47, Plant Husbandry,

2, for structures for controlling frost for preventing damage to plants, trees, and the like. 244, Aeronautics,

114, for fog control structures claimed relation thereto, and subclass 136 for weather-control material discharging means particularly related to an aeroplane structure.

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

1+, for continuous gas or vapor phase colloid system (e.g., smoke, fog, aerosol, cloud, mist) 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; and when not disclosed as adapted to (1) wet a surface or (2) to precipitate atmospheric moisture, for which see Class 239, the appropriate subclass for compositions for or methods of breaking or inhibiting continuous gas or vapor phase colloid systems.