Patent ID: 7451910

Claim:
A cup made of paper material comprising a fillable interior, which is formed by a conical sleeve and a bottom, whereby the bottom is attached with a bottom skirt essentially liquid-tight to the sleeve at the lower end of the interior, said bottom skirt forming a standing surface at its lower end and whereby the sleeve comprises an outwardly formed lip at the upper end of the sleeve, wherein the height (B) of the lip is greater than the height (A) of the bottom over the standing surface of the cup at the lower edge of the bottom skirt and wherein said outwardly formed lip has an outwardly rolled upper edge and an inwardly rolled lower edge, wherein an upper edge of said conical sleeve is rolled for an angle of at least 360 degrees so that the outwardly formed lip has a section being parallel to an outside of the conical sleeve and resting thereon, and wherein the lip comprises a first and second holding means, which support the cup when stacked with another cup of the same type.