US PATENT SUBCLASS 229 / 244
.~.~.~ Including a line of weakness in a closure flap

Current as of: June, 1999
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229 /   HD   ENVELOPES, WRAPPERS, AND PAPERBOARD BOXES

100  DF  PAPERBOARD BOX {54}
200  DF  .~ Having means to facilitate opening the box by severing (e.g., tearing, cutting, piercing, etc.) box material or outer wrapper {14}
243  DF  .~.~ Nonreclosable box includes means for tearing it open without completely removing box material {1}
244.~.~.~ Including a line of weakness in a closure flap

DEFINITION

Classification: 229/244

Including a line of weakness in a closure flap:

(under subclass 243) Subject matter wherein the severing means includes a line of reduced strength located in a box wall extension which is used to initially close the box.

SEE OR SEARCH THIS CLASS, SUBCLASS:

241, for a removable tear strip which includes bonded segments of two overlapped closure flaps.