Patents Examined by David M. Cray
  • Slide copper system
    Patent number: 6711347
    Abstract: Sunlight is reflected from the white surfaces of a diffuser chamber through a photographic slide in order to permit its being copied by a camera. The quality of color rendition is excellent, and the device is simpler and less expensive than alternative methods of reproduction. The device is supplied in kit form with parts that are assembled in a range of spacings to match lens heights of most cameras.
    Type: Grant
    Filed: November 25, 2002
    Date of Patent: March 23, 2004
    Inventor: Robert W. Fritts