US PATENT SUBCLASS 514 / 959
BREATHING GASES


Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

959BREATHING GASES


DEFINITION

Classification: 514/959

BREATHING GASES:

Subject matter involving inhalation of a breathing gas such as oxygen containing gas and supplements thereto.

SEE OR SEARCH CLASS

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.