Patents by Inventor Wolfgang Pinkau

Wolfgang Pinkau 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).

  • Containers for foodstuff
    Patent number: 4067475
    Abstract: A generally dish-shaped container has a projection or projections at its mouth edge, and a recess or recesses in its bottom or its base, whereby such containers can be secured together to form a structure on a building block principle, by interengagement of the projection and recess. The structure can be formed by securing containers together in pairs at their mouth edges, and then securing two or more pairs together by means of the projection and recess interengagement.
    Type: Grant
    Filed: August 30, 1976
    Date of Patent: January 10, 1978
    Inventors: Wolfgang Pinkau, Alfred Esser