Patents by Inventor Robert L. Grimaldi

Robert L. Grimaldi 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).

  • Button-shaped toy record player
    Patent number: 4090718
    Abstract: A toy record player in the shape of a lapel-attachable button includes a turntable hingeably attached to a housing and start-up means in the form of a rope for hingeably swinging the turntable from a first position in contact with the tone arm of the player to a second position out of contact therewith during operation of the start-up means.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: May 23, 1978
    Inventor: Robert L. Grimaldi