Patents by Inventor John D. Wark

John D. Wark 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: 3968797
    Abstract: A douche nozzle adapted to be attached to a liquid container is disclosed which comprises an elongated tube having a passageway therethrough, a substantially conical base portion, means adapted to affix the base portion onto a container and a shield portion formed as a continuation of the base portion and adapted to overlap a portion of the container. A completely self-contained douche product is also disclosed which includes the nozzle and a flexible sealed container having a quantity of douching liquid sufficient for a single application.
    Type: Grant
    Filed: August 13, 1974
    Date of Patent: July 13, 1976
    Assignee: International Paper Company
    Inventors: Gilbert Packer, Roger W. Boucher, James M. Moore, John D. Wark, Henry A. Holzwarth
  • Patent number: 3963172
    Abstract: A one-piece molded egg carton of the type having a tray-like bottom section with two parallel rows of downwardly dished egg receiving pockets, two articulated trough-shaped cover sections integrally hinged to the opposite sides of the bottom section for closing up and over the rows of pockets filled with eggs to provide a substantially uninterrupted flat upper cover surface for displaying advertising information and/or content information. The two cover sections are locked in the closed position by male locking projections which positively engage female locking ledges provided by apertures in the bottom section between the rows of egg pockets. A series of window openings are provided on each side of the carton for viewing the contents of all the egg pockets without opening the carton.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: June 15, 1976
    Assignee: Keyes Fibre Company
    Inventors: Henry A. Holzwarth, John D. Wark
  • Patent number: D252597
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: August 14, 1979
    Assignee: Johnson & Johnson
    Inventors: Henry A. Holzwarth, John D. Wark