Patents by Inventor Robert Lee Craiig

Robert Lee Craiig 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: 6801715
    Abstract: A photographic film strip in the form of a length of photographic film has a pre-exposed area and an unexposed area. The pre-exposed area is continuous and extends along one edge of the strip between ends of the strip. The unexposed area is also continuous and has a length suitable for making multiple single exposure frames with adjacent frames being separated by a frame line. Upon development the film, an image formed by the pre-exposed section of each print will extend between opposite edges of prints formed by individual frames without the need to preregister the film in a camera The pre-exposure comprises a contact exposure. A strip of film can be placed in contact with a partially pre-exposed master on a cylindrical drum in a light tight housing so that pre-exposed section of the film can be exposed by one activation of an electronic flash located in the center of the drum.
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: October 5, 2004
    Inventor: Robert Lee Craiig