Patents by Inventor Ronald R. Mathis

Ronald R. Mathis 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).

  • Rack for laying Italian and quarry tile
    Patent number: 4351694
    Abstract: An improved rack for laying tiles with provision for preventing contact of the main rack surfaces with the tile adhesive and with means for adjustment of rack dimensions to permit accommodation of different tile sizes. A lightweight and inexpensive rack is provided in a form that facilitates assembly so that the rack may be readily shipped or stored in unassembled form.
    Type: Grant
    Filed: October 15, 1981
    Date of Patent: September 28, 1982
    Inventor: Ronald R. Mathis