Patents by Inventor Irene C. Threadgill

Irene C. Threadgill 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).

  • Cordless electric guitar
    Patent number: H1503
    Abstract: An electric guitar includes a direct pickup that is physically and mechanically connected to the strings of the guitar instead of by an acoustic coupling. Such direct connection prevents noise, and other distortions associated with over-the-air connections from interfering with the transmission of sounds from the strings to the pickup device.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: December 5, 1995
    Inventor: Irene C. Threadgill