US PATENT SUBCLASS 250 / 336.1
INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING

Current as of: June, 1999
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250 /   HD   RADIANT ENERGY

336.1INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
336.2  DF  .~> Superconducting type
337  DF  .~> With heating of luminophors
338.1  DF  .~> Infrared responsive {12}
354.1  DF  .~> Signalling means controls incident radiation
356.1  DF  .~> Flow metering {1}
357.1  DF  .~> Fluent material level signalling
358.1  DF  .~> With means to inspect passive solid objects {2}
361 R  DF  .~> With or including a luminophor {7}
370.01  DF  .~> Semiconductor system {13}
372  DF  .~> Ultraviolet light responsive means {1}
374  DF  .~> Including a radiant energy responsive gas discharge device {8}
389  DF  .~> Including ionization means
390.01  DF  .~> Neutron responsive means {10}
393  DF  .~> With radiant energy source
394  DF  .~> Plural signalling means
395  DF  .~> Methods

DEFINITION

Classification: 250/336.1

INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING:

(under the class definition) Subject matter which when subjected in whole or in part to invisible radiant energy produces between some two electrically accessible points an increase or decrease in electric potential difference or current flow.

(1) Note. The subject matter of this subclass and the subclasses indented hereunder includes means to convert invisible radiant energy to some other kind of energy which is then converted to an electrical signal. For example, means including a phosphorescent material that produces visible light in response to irradiation by invisible radiant energy combined with means producing an electrical signal in response to irradiation by the visible light will be found in subclasses 361+.

(2) Note. Subject matter responsive only to visible radiant energy or useful with both visible and invisible radiant energy is not classified here but in subclasses 200+ below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

200+, for subject matter responsive to visible radiant energy or useful with both visible and invisible radiant energy.

472.1+, for means which respond to invisible radiation but do not produce, or are not combined with means that produce, a corresponding electrical signal.

SEE OR SEARCH CLASS

359, Optics: Systems (Including Communication) and Elements, 109+, for light wave communications.

378, X-Ray or Gamma Ray Systems or Devices, appropriate subclasses for X-ray devices of this type.