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 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|