Patents by Inventor Clifford John Frazier

Clifford John Frazier 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 and apparatus of changing characters on a font and preparing a font duplicate
    Patent number: 4094680
    Abstract: A film matrix is reproduced and altered by mounting a replacing image on a light transparent sheet over the image to be replaced on the film matrix. The image to be replaced is obliterated. The mounted replacing image and the film matrix are then double exposed on another piece of film to produce another film matrix with the replacing image appropriately inserted.
    Type: Grant
    Filed: January 19, 1977
    Date of Patent: June 13, 1978
    Assignee: Castcraft Industries, Inc.
    Inventor: Clifford John Frazier