US PATENT SUBCLASS 436 / 149
MEASUREMENT OF ELECTRICAL OR MAGNETIC PROPERTY OR THERMAL CONDUCTIVITY

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

149MEASUREMENT OF ELECTRICAL OR MAGNETIC PROPERTY OR THERMAL CONDUCTIVITY {3}
150  DF  .~> Of a liquid
151  DF  .~> By means of a solid body in contact with a fluid {1}
153  DF  .~> Of an ionized gas {1}

DEFINITION

Classification: 436/149

MEASUREMENT OF ELECTRICAL OR MAGNETIC PROPERTY OR THERMAL CONDUCTIVITY:

(under the class definition) Subject matter wherein electrical, or magnetic properties or thermal conductivity.

(1) Note. This subclass does not provide for mere use of a thermocouple to detect a temperature change, such tests being classified in this class, subclass 147.

(2) Note. Thermal conductivity is a physical property and classification in this subclass requires the combination thereof with a chemical reaction.

SEE OR SEARCH CLASS

73, Measuring and Testing,

25.01+, for a method of gas analysis by electrical thermal determination.

205, Electrolysis: Processes, Compositions Used Therein, and Methods of Preparing the Compositions,

775+, for electrolytic analysis or testing processes. 324, Electricity: Measuring and Testing,

425+, and 71.1+ for processes for the determination of nonelectric properties by measuring electric properties particularly subclass 71.5 for the use of a semiconductor which is of itself chemically reactive.