US PATENT SUBCLASS 229 / 167
.~.~ Panel forms a hollow sidewall or sidewall portion

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

100  DF  PAPERBOARD BOX {54}
165  DF  .~ A sidewall includes a horizontally or downwardly extending panel attached along a horizontal fold line which is spaced above the box bottom {10}
167.~.~ Panel forms a hollow sidewall or sidewall portion {1}
168  DF  .~.~.~> Hollow sidewall has a nonrectangular cross-section

DEFINITION

Classification: 229/167

Panel forms a hollow sidewall or sidewall portion:

(under subclass 165) Subject matter wherein the panel forms a double layer side wall or sidewall section having a significant air space between layers. [figure]