Patents by Inventor David E. Sadler

David E. Sadler 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).

  • Method of using a roll of perforated plastic roofing tabs
    Patent number: 4624721
    Abstract: A continuous roll of perforated plastic tabs for use in stapling roofing paper onto a roof or other building panel. Preferably the tabs are 11/4 inches by 11/4 inches square and 0.03 inches thick and made of styrene.
    Type: Grant
    Filed: June 18, 1985
    Date of Patent: November 25, 1986
    Inventors: David E. Sadler, Norman A. Walters