Appeal No. 1999-2092 Page 9
Application No. 08/798,718
chamber 14), and a line of weakness disposed in said margin
(Salvadori's opening means 22 and preformed tear seam 46),
said line of weakness having a central portion extending
lengthwise of said margin (as shown in Figure 5, the
horizontally disposed portion of Salvadori's preformed tear
seam 46) and opposite end portions (the end portions of
Salvadori's preformed tear seam 46 leading to first tearing
edge 48 and second tearing edge 50), said central portion
being disposed intermediate and spaced from opposite
longitudinal edges of said margin (the horizontally disposed
portion of Salvadori's preformed tear seam 46 is disposed
intermediate and spaced from opposite longitudinal edges
(i.e., seams 36 and 54) of the margin), a first said end
portion extending away from said central volume at an angle
and intersecting said outer edge (the end portion of
Salvadori's preformed tear seam 46 leading to first tearing
edge 48 from the horizontally disposed portion of Salvadori's
preformed tear seam 46), a second said end portion extending
toward said central volume and away from said central portion
at an angle in a direction opposite the direction in which
said first end portion extends (the end portion of Salvadori's
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