Patents by Inventor Frederick J. Rigby

Frederick J. Rigby 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).

  • Floor or wall coverings
    Patent number: 4172169
    Abstract: A floor or wall covering is disclosed which comprises a foamed polymeric layer including raised areas separated by recessed areas and a protective layer over the upper surface of the covering and comprising a first non-foamed layer and a second non-foamed layer and in which the second non-foamed layer is discontinuous and leaves part at least of the first non-foamed layer uncovered and has a gloss different from that of the first non-foamed layer or at least one of the first and second non-foamed layers is discontinuous and provides the protective layer with a difference in thickness that imparts a pattern in relief to the said covering.
    Type: Grant
    Filed: September 22, 1977
    Date of Patent: October 23, 1979
    Assignee: Nairn Floors Limited
    Inventors: Alan Mawson, Frederick J. Rigby, Brian Williams