US PATENT SUBCLASS 229 / 190
.~ A sidewall includes a folded lateral extension of an adjacent sidewall (e.g., "corner flap")

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

100  DF  PAPERBOARD BOX {54}
190.~ A sidewall includes a folded lateral extension of an adjacent sidewall (e.g., "corner flap") {5}
191  DF  .~.~> Extension forms hollow, upstanding corner element
192  DF  .~.~> Each of two adjacent sidewalls has a folded lateral extension where they join
193  DF  .~.~> Folded extensions of opposed sidewalls overlap one another {1}
195  DF  .~.~> Extension projects into an opening in the box material {2}
198  DF  .~.~> Extension secured in folded position by a separate fastening device (e.g., adhesive tape, staple, etc.)

DEFINITION

Classification: 229/190

A sidewall includes a folded lateral extension of an adjacent sidewall (e.g., "corner flap"):

(under subclass 100) Subject matter wherein an elongation of a first, generally upright box wall forms at least a part of an adjoining, generally upright box wall, the elongation being joined to the first wall along a fold line. [figure] [caption]folded lateral extension; sidewall