Method of making a closure seal for a container
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United States of America Patent
Stats
-
Sep 2, 2008
Grant Date -
Mar 30, 2006
app pub date -
Nov 17, 2005
filing date -
Oct 20, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seal for a container opening includes a seal layer for connecting to and covering an opening of the container. A pull-tab forming layer is bonded to the seal layer. The pull-tab forming layer has a heat resistant surface joined to the seal layer, and a hinge disposed near the center of the seal. A portion of the pull-tab forming layer defines a pair of opposed pull-tabs extending from the hinge, in which the heat resistant surface covers a top surface of each of the pull-tabs, a surface of the pull-tabs opposite the top surface, and a portion of the pull-tab forming layer facing the surface of the pull-tabs opposite the top surface. A method of forming the seal and a material blank for forming a plurality of the seals are also described.
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