Patents by Inventor James Fred Easton

James Fred Easton 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).

  • Ladder leveling device
    Patent number: 4014406
    Abstract: A ladder leveling device is disclosed by which one or both legs of the leveling device are adapted to be elongated to provide an upright and continuously stable position for the ladder on sloping or an irregular base.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: March 29, 1977
    Inventor: James Fred Easton