Patents by Inventor Charles Sbrigato

Charles Sbrigato 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).

  • Spreader for cold-coat roofing tar
    Patent number: 5778482
    Abstract: A device for spreading cold-coat tar for securing roofing paper, comprising a hard rubber blade with serration, which, when pushed over the surface to be roofed, spreads the desired coat of tar over a predetermined width of the surface to be roofed.
    Type: Grant
    Filed: July 31, 1996
    Date of Patent: July 14, 1998
    Inventor: Charles Sbrigato