Patent ID: 9538870
Date: 2017-01-10
CPC Classifications: A47G,B65D

Claim:
1. A disposable servingware container press-formed from a generally planar paperboard blank, comprising: a generally planar bottom portion; a sidewall portion extending upwardly and outwardly from the generally planar bottom portion; a brim portion extending outwardly from the sidewall portion; an evert portion extending outwardly from the brim portion; a first annular transition portion located between the generally planar bottom portion and a first end of the sidewall portion, the first annular transition portion having a radius of curvature R a second annular transition portion located between a second end of the sidewall portion and a first end of the brim portion, the second annular transition portion having a radius of curvature R the brim portion having a first generally straight section, a second generally straight section, and a third annular transition portion between the first and second generally straight sections, wherein the third annular transition portion has a radius of curvature R a fourth annular transition portion located between the second generally straight section of the brim portion and the evert portion, the fourth annular transition portion having a radius of curvature R a characteristic diameter D, wherein a length of the second generally straight section of the brim portion is 0.003D to 0.005D.