Patents by Inventor M. P. Ferris

M. P. Ferris 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).

  • Spring construction
    Patent number: 4247089
    Abstract: A seat spring assembly having sinuous spring bands wherein the outermost band adjacent a side rail is provided supplemental resilient resistance to deflection by a combination of a trust member and a key member. As a result, a uniform spacing can be maintained between the bands across the entire seat frame.
    Type: Grant
    Filed: October 6, 1978
    Date of Patent: January 27, 1981
    Assignee: Morley Furniture Spring Construction
    Inventors: Lawton H. Crosby, M. P. Ferris, Kurt Melzer