Patents by Inventor Robert Adamec

Robert Adamec 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).

  • Finger ring with plectrum
    Patent number: 4270433
    Abstract: A plectrum ring comprises a ring element having a boss with a recess in the lower portion thereof dimensioned and configured to support therein the finger adjacent the finger wearing the ring element. A stud element projects upwardly from the boss for adjustably mounting a plectrum thereon, the axis of the stud element being substantially tangential to the finger wearing the ring element.
    Type: Grant
    Filed: October 17, 1979
    Date of Patent: June 2, 1981
    Inventor: Robert Adamec