Membrane sealed container
    2.
    发明授权

    公开(公告)号:US10421588B2

    公开(公告)日:2019-09-24

    申请号:US15562126

    申请日:2016-03-28

    Abstract: A sealed container for packaging of granular or powdered product including a rigid container body defining an interior space and an upper portion, the upper portion having a sealing lip that defines an opening to the interior space, and a flexible, polymer sealing membrane removably attached to the sealing lip to cover the opening, the sealing membrane including a plurality of laser generated micro-perforations formed through the sealing membrane, the size of each of the plurality of laser generated micro-perforations being less than 3.937 mils.

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