US PATENT SUBCLASS 229 / 193
.~.~ Folded extensions of opposed sidewalls overlap one another

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

100  DF  PAPERBOARD BOX {54}
190  DF  .~ A sidewall includes a folded lateral extension of an adjacent sidewall (e.g., "corner flap") {5}
193.~.~ Folded extensions of opposed sidewalls overlap one another {1}
194  DF  .~.~.~> And are mechanically interlocked with each other

DEFINITION

Classification: 229/193

Folded extensions of opposed sidewalls overlap one another:

(under subclass 190) Subject matter wherein each of the two sidewalls, which form opposite sides of the box, has a laterally folded extension which extends toward and overlies the other extension. [figure] [caption]opposed sidewalls; overlapping extensions