US PATENT SUBCLASS 436 / 138
.~.~ Dissolved or trace oxygen or oxygen content of a sealed environment

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

127  DF  OXYGEN CONTAINING {5}
136  DF  .~ Molecular oxygen {2}
138.~.~ Dissolved or trace oxygen or oxygen content of a sealed environment

DEFINITION

Classification: 436/138

Dissolved or trace oxygen or oxygen content of a sealed environment:

(under subclass 136) Subject matter in which the molecular oxygen is present (a) dissolved in a liquid (b) is denominated as a trace, residium, etc. or (c) in which the test is directed to the detection of the oxygen content of a confined space which is isolated from the atmosphere.