US PATENT SUBCLASS 327 / 512
.~ Temperature

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

509  DF  EXTERNAL EFFECT {5}
512.~ Temperature {1}
513  DF  .~.~> With compensation for temperature fluctuations

DEFINITION

Classification: 327/512

Temperature:

(under subclass 509) Subject matter wherein the external effect involves heat or thermal energy.

SEE OR SEARCH CLASS

257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes),

467+, for a heat responsive semiconducting element, per se.

331, Oscillators,

66, for a temperature controlled oscillator and subclass 70 for oscillators with temperature modifiers and see the search notes thereunder.

338, Electrical Resistors, 25+, for resistors whose value is responsive to ambient temperature and see the search notes thereunder.

340, Communications: Electrical,

584+, for thermal condition responsive indicating systems.

374, Thermal Measuring and Testing,

163, for a thermal sensor with quantitative indicator and subclass 178 for an electrical thermometer having a barrier layer sensing element.