Patents by Inventor William T. Chase

William T. Chase 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).

  • Method of using a web for etching of a surface
    Patent number: 5213656
    Abstract: A laminated web is used for etching characters, symbols or other shapes initially scribed in a layer of stencil sheet material including one of the layers of the web and the scribed stencil sheet is subsequently separated from the remaining web and used in an electrochemical etching process. The web is adapted to be used in an automatic sign maker wherein it is scribed on automatically as a result of instructions issued from a controller and the scribed markings are then used as a negative image in the etching process of an article surface.
    Type: Grant
    Filed: December 4, 1991
    Date of Patent: May 25, 1993
    Assignee: Gerber Scientific Products, Inc.
    Inventors: Brian H. Lis, William J. Stevenson, III, Raymond J. MacQueen, Jr., William T. Chase, James R. Parys, Alden J. Hay