Patents by Inventor Klaus Peter Bartels

Klaus Peter Bartels 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).

  • Food container
    Patent number: 3938730
    Abstract: A food container comprising an inner heat proof tray which is closed by a lid and in which the food to be heated is contained is protected by an outer cardboard member surrounding the bottom and sides of the inner tray. Opening tabs extending from the upper edges of the cardboard member are releasably secured to the inner tray or lid so that pulling on the tabs first releases the tabs therefrom without damaging the lid or its sealing with the tray and further pulling tears the outer cardboard member so that the inner tray can be readily removed from the outer before being heated.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: February 17, 1976
    Assignee: Lever Brothers Company
    Inventors: Josef Detzel, Klaus Peter Bartels