Patents by Inventor Ralph L. Maddox

Ralph L. Maddox 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).

  • Foldable stand for holding musical instruments and blanks for forming same
    Patent number: 5209443
    Abstract: A lightweight stand for holding musical instruments is formed from first and second unitary blanks made of cardboard, paperboard or similar material. The assembled stand includes a pair of spaced apart legs and a tray for holding an instrument such as a xylophone at a height which is convenient for a musician who is seated. The stand also includes a pair of foldable shelves which may be extended to positions in which they support the xylophone at an elevated height desirable for a standing musician.
    Type: Grant
    Filed: November 2, 1991
    Date of Patent: May 11, 1993
    Inventor: Ralph L. Maddox