发明名称 Easy opening lid for ovenable carton
摘要 A paperboard lid for a tray type ovenable carton is provided with weakened score lines only in its lower surface to form an easy opening means. The lid includes a first continuous score line extending around the periphery of the lid and a second weakened score line of abbreviated length at one corner of the lid spaced from, but adjacent to, the first continuous score line. The lid preferably includes a right angle corner where the second weakened score line is located to provide a lift tab for venting the carton and for removing the lid to open the carton.
申请公布号 US4955530(A) 申请公布日期 1990.09.11
申请号 US19900500203 申请日期 1990.03.28
申请人 WESTVACO CORPORATION 发明人 RIGBY, WILLIAM R.;WOYCE, JR., LOUIS C.
分类号 B65D75/62;B65D77/20 主分类号 B65D75/62
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