Patents by Inventor Richard K. Sink

Richard K. Sink 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).

  • Folding map
    Patent number: 4801157
    Abstract: A folding map is formed of a single sheet which is folded in an alternating accordion-like fashion. A plurality of panels are defined between the folds, each panel having a map portion and an information-bearing portion. The panels are of decreasing width so that the information-bearing portion of each panel are visible when the map is completely folded. The map can further include a key printed on the front panel, and a color-matching system and/or a mark system which facilitate location of a desired area on the map.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: January 31, 1989
    Assignee: Rallye Group, Inc.
    Inventor: Richard K. Sink