Flexible package
    10.
    发明授权

    公开(公告)号:US11897682B2

    公开(公告)日:2024-02-13

    申请号:US17190452

    申请日:2021-03-03

    CPC classification number: B65D81/052 B31B70/60 B31B2150/00 B31B2170/20

    Abstract: Package having a flexible inner sheet, a flexible secondary inner sheet, a flexible secondary outer sheet, and an outer sheet. The inner sheet and secondary inner sheet are joined together at least an outer seam and forming one or more primary expansion chambers. The package also has a flexible secondary outer sheet and an outer sheet, joined together at least an outer seam and forming one or more secondary expansion chambers. The secondary outer sheet and the outer sheet also form one or more non-expansion chambers that can be a label surface.

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