US PATENT SUBCLASS 359 / 567
.~.~ For ornamental effect or display

Current as of: June, 1999
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359 /   HD   OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS

558  DF  DIFFRACTION {3}
566  DF  .~ From grating {3}
567.~.~ For ornamental effect or display

DEFINITION

Classification: 359/567

For ornamental effect or display:

(under subclass 566) Subject matter wherein the diffraction of light from the grating is purely for an aesthetic or ornamental effect or for display purposes.

SEE OR SEARCH CLASS

40, Card, Picture, or Sign Exhibiting,

427+, for display devices exhibiting special optical

effects.