Patents Assigned to Second Sight Enterprises, Inc.
  • Method of applying guide markings to writing surfaces
    Patent number: 5698297
    Abstract: Improved method of applying guide markings to a writing surface such as posterboard. The guide markings are visually perceptible at a writing distance away from the posterboard, and substantially imperceptible at a viewing distance away from the--writing surface.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: December 16, 1997
    Assignee: Second Sight Enterprises, Inc.
    Inventors: Barbara R. Pitts, Mary R. Sarao