Two-piece paperboard lids having spiral-wound side wall and non-circular geometries, and methods of making the same
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United States of America Patent
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Feb 22, 2000
Grant Date -
N/A
app pub date -
Feb 23, 1998
filing date -
Feb 23, 1998
priority date (Note) -
Expired
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Abstract
Spirally-wound circular side walls may be re-formed into non-circular geometries which are then mechanically joined to conformably shaped non-circular closure disks and thereby produce non-circular two-piece paperboard container lids.
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