Patents by Inventor Gerald Price Thompson

Gerald Price Thompson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Lighting device
    Patent number: 4103322
    Abstract: A device for illuminating fish tanks or the like in which a source of light positioned over the fish tank is surrounded with light absorbent material to prevent unwanted reflection or refractions and is provided with a filter which specifies the color of the illuminating light. The fish tank water is illuminated with a single color light free of unwanted refractions or reflections to muddy the color.The device includes a masking cylinder housing the light which prevents all unwanted reflections and refractions and filter cylinder movable with respect to the masking cylinder to provide a variety of color possibilities.
    Type: Grant
    Filed: September 27, 1976
    Date of Patent: July 25, 1978
    Inventor: Gerald Price Thompson