US PATENT SUBCLASS 310 / 368
.~.~.~ Rectangular plate


Current as of: June, 1999
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310 /   HD   ELECTRICAL GENERATOR OR MOTOR STRUCTURE

300  DF  NON-DYNAMOELECTRIC {4}
311  DF  .~ Piezoelectric elements and devices {17}
367  DF  .~.~ Piezoelectric element shape {4}
368.~.~.~ Rectangular plate


DEFINITION

Classification: 310/368

Rectangular plate:

(under subclass 367) Subject matter wherein the shape of the piezoelectric element is essentially that of a solid rectangle, i.e., having three pairs of parallel sides.

(1) Note. Subject matter of this subclass type may include, for example, a cube.

(2) Note. Slight deviations from the exact shape specified above will not operate to exclude the device from this

subclass if the overall appearance of the element remains rectangular, i.e., one or more pairs of sides may not be exactly parallel, one or more surfaces may be grooved or machined, edges may be rounded, or holes may be in or pass through the device.