Patents by Inventor Leland T. Prentice

Leland T. Prentice 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).

  • Patent number: 4385828
    Abstract: The method disclosed enables one to transfer an image from a translucent material to a photosensitized material. Initially a translucent material which includes an image is placed between an unexposed sensitized material, such as a film negative, and a source of light. The source of light is energized for a predetermined time interval to pass light through the translucent material onto the negative to transfer the image from the translucent material to the film negative. The film negative can then be used to expose a printing press plate, such as a lithographic plate. The method can be used to transfer either black and white or color line work, pre-screened image material and either black and white or color image material to one or more film negatives or sheets of sensitized material.
    Type: Grant
    Filed: February 26, 1981
    Date of Patent: May 31, 1983
    Inventor: Leland T. Prentice