FOIL-LID TO CLOSE A TRAY, AND METHOD OF MANUFACTURING SAID FOIL-LID
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United States of America Patent
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Issued Date -
Oct 13, 2011
app pub date -
Apr 12, 2011
filing date -
Apr 12, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Foil lid for closing a container, wherein the foil lid comprises composite layers, wherein the composite layers comprise a first layer group and a second layer group, wherein both the first layer group and the second layer group comprise at least one layer of a first type and one layer of a second type, and the layer of the first type of the first layer group is blocked over its entire area with the layer of the first type of the second layer group, and wherein at least the first layer group, which faces the container when the foil lid is used as intended, comprises a zone of weakness which defines the periphery of an opening.
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