Patents by Inventor Paul J. Oppenheim

Paul J. Oppenheim 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: 5305950
    Abstract: A carton, typically of corrugated paperboard, is formed from a one-piece blank having major side wall bottom flaps and minor end wall bottom flaps arranged to be securely interlocked, for which purpose openings which comprise or include slits are provided preferably in the major side wall bottom flaps into which may be inserted tabs preferably on the corners of the minor end wall bottom flaps. The tabs are shaped so as to provide hooks which engage exposed edges of the slits to lock and prevent the tabs from being accidentally withdrawn after insertion, thus providing a carton with a locked bottom closure.
    Type: Grant
    Filed: April 20, 1993
    Date of Patent: April 26, 1994
    Assignee: International Paper Company
    Inventor: Paul J. Oppenheim
  • Patent number: 5181651
    Abstract: An asparagus carton and a unitary blank for forming it. The blank is of corrugated paperboard. The carton interior is tapered along opposite side walls by virtue of slanting side spacer panels. This yields a trapezoidal configuration of a part of the carton interior to more nearly correspond to the tapered form of a mass of asparagus. The carton is preferably loaded from the bottom. The asparagus may be inspected by opening a side wall panel, and may also be opened from the top. In addition to providing slanting side walls, the side spacer panels permit the loaded carton to be lifted through side wall openings without contacting the asparagus. In a first embodiment, the bottom of the carton may be opened by releasing a bottom tongue and slot latch arrangement, while in a second embodiment the bottom of the carton is defined by known interlocking panels.
    Type: Grant
    Filed: February 10, 1992
    Date of Patent: January 26, 1993
    Assignee: International Paper Company
    Inventor: Paul J. Oppenheim