Patents by Inventor Stevenson Durham, Jr.

Stevenson Durham, Jr. 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).

  • Ham ladder
    Patent number: 5746287
    Abstract: A collapsible escape ladder within a storage container. The container has an upper lid connected to the lower rung of the ladder. The container's lower section is connected to the ladder's upper rung section and a dwelling's structural component. During an emergency the lid is thrown from a window pulling the rest of the ladder to its full unfurled length. The lower ladder rung is attached to the lid which by its weight stabilizes the ladder while its upper rung is firmly fixed to the container's lower section and dwelling.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: May 5, 1998
    Inventor: Stevenson Durham, Jr.