US PATENT SUBCLASS 229 / 151
.~.~.~.~ Flange or tab extends between two layers of box material

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}
151.~.~.~.~ Flange or tab extends between two layers of box material

DEFINITION

Classification: 229/151

Flange or tab extends between two layers of box material:

(under subclass 141) Subject matter wherein the flange or tab lies between two thicknesses of stock material when the access opening is closed. [figure]

SEE OR SEARCH THIS CLASS, SUBCLASS:

125.31, for a separate closure having a flange or tab when extends between two layers of box material.