Patents by Inventor David S. Leib

David S. Leib 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: 4457653
    Abstract: A retrievable toggle bolt assembly characterized by a cup for receiving the hinged toggle elements as the bolt is unscrewed from a wall or ceiling panel. The cup is formed to provide indication as to complete attachment of the bolt to a cap carried thereon.
    Type: Grant
    Filed: May 28, 1982
    Date of Patent: July 3, 1984
    Inventor: David S. Leib