Patent ID: 8172127

Claim:
A cup made of paper material and having a fillable interior and a longitudinal centerline, which said interior is formed by a conical sleeve and a bottom wall, wherein the bottom wall is positioned at the lower end of the interior and has a bottom skirt which attaches to the sleeve in a liquid-tight manner, wherein the sleeve and/or the bottom wall, in an area along the circumference of the bottom skirt, has an outwardly projecting widening whereat a lower edge of the widening defines a supporting surface for the cup, wherein a holding structure is fixedly arranged on said sleeve at a location spaced upwardly above said bottom wall for accessibility within said interior, said holding structure and the supporting surface on said widening being similarly radially outwardly spaced from a longitudinally extending centerline of the cup, the cup having an imaginary line, which is substantially parallel to the sleeve, extending upwardly from the lower edge of the widening and together with the sleeve defining an outer space around the cup, an outer sleeve located within said outer space, the outer sleeve located entirely above said widening and not in contact with said widening, whereby first and second said cups can be vertically stacked by inserting a lower end of said first cup into the interior of said second cup so that the supporting surface on said first cup is vertically supportingly engaged with the holding structure on said second cup.