US PATENT SUBCLASS 436 / 9
.~ Simulative of a gaseous composition

Current as of: June, 1999
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436 /   HD   CHEMISTRY: ANALYTICAL AND IMMUNOLOGICAL TESTING

8  DF  COMPOSITION FOR STANDARDIZATION, CALIBRATION, SIMULATION, STABILIZATION, PREPARATION OR PRESERVATION; PROCESSES OF USE IN PREPARATION FOR CHEMICAL TESTING {11}
9.~ Simulative of a gaseous composition

DEFINITION

Classification: 436/9

Simulative of a gaseous composition:

(under subclass 8) Compositions and methods which produce the effect of a gas composition for the purpose of calibration or otherwise simulating a chemical effect of the gas simulated.

SEE OR SEARCH CLASS

252, Compositions,

372, for gaseous compositions, per se.