Patents by Inventor Dorothy A. Zitzelberger

Dorothy A. Zitzelberger 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).

  • Post card folio
    Patent number: 4048740
    Abstract: A folio, a plurality of which form a booklet, from outer surfaces of which one may separate a representation of a picture or scene to expose a framed duplicate thereof. In preferred embodiment the separated representation is embodied in a post card format which may be used to send messages to family or friends while the remainder of the folio including the duplicates may be preserved as a permanent album with pertinent notations.
    Type: Grant
    Filed: July 9, 1975
    Date of Patent: September 20, 1977
    Inventors: Donald J. Zitzelberger, Dorothy A. Zitzelberger