US PATENT SUBCLASS 229 / 143
.~.~.~.~.~ Each of two opposed extensions includes flanges or tabs depending from two opposite edges

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

100  DF  PAPERBOARD BOX {54}
124  DF  .~ With closure for an access opening {7}
126  DF  .~.~ Foldable wall extension (e.g., closure flap) {13}
141  DF  .~.~.~ Extension includes a depending flange or tab which extends along an adjacent box wall {9}
142  DF  .~.~.~.~ Two or more extensions include a depending flange or tab {1}
143.~.~.~.~.~ Each of two opposed extensions includes flanges or tabs depending from two opposite edges

DEFINITION

Classification: 229/143

Each of two opposed extensions includes flanges or tabs depending from two opposite edges:

(under subclass 142) Subject matter wherein the closure includes (a) two extensions which are attached to opposing box walls, and (b) at least two flanges or tabs attached to opposing edges of each extension. [figure] [caption]flanges or tabs, opposed extensions