Patents by Inventor Paul J. Stefanelli

Paul J. Stefanelli 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).

  • Patent number: 4454950
    Abstract: The collapsible receptacle includes first and second planar pieces pivotally connected together by a piano hinge, thus forming a V-shaped receiving section. A third piece cooperates with an extension of the first piece to form a U-shaped support base. A back piece is removably secured to the first and second piece, and the receiving section slopes toward the back piece so that debris is directed rearwardly. Finally, a chain is used to restrain the outward movement of the first and third pieces.
    Type: Grant
    Filed: December 18, 1981
    Date of Patent: June 19, 1984
    Inventor: Paul J. Stefanelli