Patents by Inventor Walter E. Nelson

Walter E. Nelson 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).

  • Electrically amplified musical instrument control apparatus
    Patent number: 4030397
    Abstract: An electrically amplified musical instrument control apparatus for combining control of a broad range of special sound effects in a single housing and enabling a musician to produce single or multiple special sound effects as desired with a guitar while indicating the operational status of each special effect and providing a foot-operated volume control.
    Type: Grant
    Filed: November 21, 1975
    Date of Patent: June 21, 1977
    Inventor: Walter E. Nelson