Patents Assigned to Winter Park Associates
  • Patent number: 4192640
    Abstract: A photographic process and article resulting therefrom which utilizes multiple images that are transferred to a single image receiving surface. In the preferred embodiment the images are formed on the receiving surface by diffusion transfer development and each image on the receiving surface is electrically conductive. In the areas in which the images overlap, the electrical resistivity is lower than in the nonoverlapped areas. Electrical resistivity in a given area can be controlled by the number of images transferred to the receiving surface. One application of the process is the formation of electrical components such as, printed circuit boards, by photographic diffusion transfer development.
    Type: Grant
    Filed: August 17, 1977
    Date of Patent: March 11, 1980
    Assignee: Winter Park Associates
    Inventor: Glenn W. Merry