Patents by Inventor Jon F. Hall

Jon F. Hall 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: 4249812
    Abstract: The still camera in its preferred form is designed to accept the nornal 35-mm. film cartridge. The camera lens and aperture, however, are offset vertically above the normal positions for the lens and aperture such that as the film is advanced, only the upper half portion of the film is exposed. The horizontal length of the image frame can be the same as a normal 35-mm. exposure while the height or width as measured vertically of the frame is one half the normal 35-mm. image. The take-up reel is especially designed to cooperate with a magazine which is provided with a lightproof slot, the spool or reel being separable from the magazine manually so that a person can easily thread the leader of the film onto the spool and insert it in the lightproof magazine.
    Type: Grant
    Filed: November 29, 1979
    Date of Patent: February 10, 1981
    Inventor: Jon F. Hall