US PATENT SUBCLASS 229 / 187
.~.~ And by a laterally folded extension which is unitary with only one of the sidewalls (i.e., "corner flap")

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

100  DF  PAPERBOARD BOX {54}
186  DF  .~ Adjacent sidewalls connected by a folded web unitary with both (i.e., "corner fold") {3}
187.~.~ And by a laterally folded extension which is unitary with only one of the sidewalls (i.e., "corner flap")

DEFINITION

Classification: 229/187

And by a laterally folded extension which is unitary with only one of the sidewalls (i.e., corner flap):

(under subclass 186) Subject matter wherein the same two sidewalls are additionally attached together by an elongation which is connected to only one of the walls along a folded line and overlies and is secured to the other wall. [figure] [caption]folded web; laterally folded extension