US PATENT SUBCLASS 229 / 191
.~.~ Extension forms hollow, upstanding corner element

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}
191.~.~ Extension forms hollow, upstanding corner element

DEFINITION

Classification: 229/191

Extension forms hollow, upstanding corner element:

(under subclass 190) Subject matter wherein the extension is folded to form, either by itself or with the two adjoining

box walls, a generally vertical and substantially empty box part. [figure] [caption]hollow element; extension