US PATENT SUBCLASS 250 / 378
.~.~.~ With charge storage means

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

336.1  DF  INVISIBLE RADIANT ENERGY RESPONSIVE ELECTRIC SIGNALLING {16}
374  DF  .~ Including a radiant energy responsive gas discharge device {8}
376  DF  .~.~ With electroscopic indicators {2}
378.~.~.~ With charge storage means

DEFINITION

Classification: 250/378

(under subclass 376) Subject matter with a capacitor or polarizable dielectric electrically connected to at least one of the relatively movable members.

(1) Note. The subject matter of this subclass includes, for example, electrets in combination with electroscopic indicators.