Patents by Inventor Carlton Hall

Carlton Hall 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 device
    Patent number: 4673372
    Abstract: A rotary device is provided and consists of an activator which when rubbed over notches causes vibration in an elongated holder which in turn causes rotation of a prop.
    Type: Grant
    Filed: October 21, 1985
    Date of Patent: June 16, 1987
    Inventor: Carlton Hall