Patents by Inventor Nathaniel Hamilton

Nathaniel Hamilton 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).

  • Rotary broom
    Patent number: 4864674
    Abstract: A device which has wheels is provided that has a removable disc with blades such that when the disc is placed in a certain position the device acts as a pushbroom, and when the disc is continously rotated, the device can act as a dustpan as well as a dustmop.
    Type: Grant
    Filed: October 14, 1987
    Date of Patent: September 12, 1989
    Inventor: Nathaniel Hamilton