Patents by Inventor Milan A. Gruber

Milan A. Gruber 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).

  • Roofing clamp
    Patent number: 5009050
    Abstract: A roofing clamp for attaching a flexible roofing sheet in a rain-tight manner. It comprises Z like halves which surround a block to clamp the roofing sheet therebetween. Machine screws hold the clamp halves together. The spacing between the clamp halves and block are of S shape at the ends to form a rain-tight seal devoid of perforation of the sheet.
    Type: Grant
    Filed: May 15, 1990
    Date of Patent: April 23, 1991
    Assignee: Ed. Shook, Jr.
    Inventor: Milan A. Gruber