US PATENT SUBCLASS 40 / 541
ILLUMINATED SIGN

Current as of: June, 1999
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40 /   HD   CARD, PICTURE, OR SIGN EXHIBITING

541ILLUMINATED SIGN {13}
542  DF  .~> Luminescent {2}
545  DF  .~> Gas filled tube
546  DF  .~> Edge illuminated {1}
548  DF  .~> Polarized
549  DF  .~> Extruded frame
550  DF  .~> Light bulbs arranged in the outline of indicia {1}
552  DF  .~> Three-dimensional alphanumeric structure
553  DF  .~> Having multiple function (i.e., illumination per se) {5}
559  DF  .~> External light source {2}
563  DF  .~> Indirect
564  DF  .~> Lamp box {13}
581  DF  .~> Colored light
582  DF  .~> Reflective {1}

DEFINITION

Classification: 40/541

ILLUMINATED SIGN:

(under the class definition) Sign in which the legend or message thereon is formed by lighting elements or made more apparent by a source of illumination.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

513+, for electric lamps formed into the shape of indicia or having indicia formed on or within the envelope or bulb of the lamp, or otherwise integrally combined with the lamp.

315, Electric Lamp and Discharge Devices: Systems, appropriate subclasses for electric systems for supplying electric energy to electric lamps.

345, Computer Graphics Processing, Operator Interface Processing, and Selective Visual Display Systems, appropriate subclasses for similar display systems with specific selective electrical control means claimed.

353, Optics: Image Projectors, for a projection system which forms a real image on a screen or other viewing surface. 359, Optics: Systems (Including Communication) and Elements,

483+, for nonmodulating polarizing devices.

362, Illumination,

806+, for decorative lights, and subclass 253 for an illuminating device "combined" with a sign not specifically provided for in subclasses 541-583 of Class 40 or otherwise specifically provided for in Class 362.