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Class 40/581 - Colored light


Subclass of Class 40 - Card, picture, or sign exhibiting
Definition: Sign in which the source of illumination is one or more
No. of patents: 44
Last issue date: 02/14/2012


  2  
NumberTitleIssue Date
4259800Display apparatus and associated circuit
A display apparatus is provided comprising a plurality of spaced lights with reflectors operatively associated with the lights which are isolated from one another. A circuit is provided for actuating the lights for selected periods of time to create an ap...
04/07/1981
4085932Amusement device featuring variable lighting effects
An amusement device providing a variety of lighting effects in which a housing is provided with a source of light positioned below two transparent turntables mounted for rotation, a mechanism for rotating the turntables, an independently operated mechanis...
04/25/1978
4067129Display apparatus having means for creating a spectral color effect
Display apparatus including a display surface containing advertising and/or other informative or decorative matter and having at least portions thereof slotted or transparent. Diffraction grating means are positioned to the rearward side of the display su...
01/10/1978
4065865Device for visually displaying luminous patterns
A multiplicity of preferably coherent light sources are disposed along a common axis and are separated from one another by interposed opaque shields in the form of disks of progressively increasing diameters transverse to that axis. Each source confronts ...
01/03/1978
  2  
 
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