Patents by Inventor Donald S. Napier

Donald S. Napier 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).

  • Collapsible structures
    Patent number: 4742653
    Abstract: A collapsible structure for use as temporary accommodation is in modular form, with a base upon which fold the walls and roof of the structure. The roof is hinged to one side wall and supported by the opposite side wall during erection of the structure, erection being possible by one man.
    Type: Grant
    Filed: September 3, 1986
    Date of Patent: May 10, 1988
    Inventors: Valda C. Napier, Donald S. Napier