US PATENT SUBCLASS 229 / 158-- .~.~.~.~ One extension projects through two separate openings in another extension

US PATENT SUBCLASS 229 / 158
.~.~.~.~ One extension projects through two separate openings in another extension

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

100	DF	PAPERBOARD BOX {54}
124	DF	.~ With closure for an access opening {7}
126	DF	.~.~ Foldable wall extension (e.g., closure flap) {13}
155	DF	.~.~.~ Plural extensions mechanically interlocked with each other {2}
158		.~.~.~.~ One extension projects through two separate openings in another extension

DEFINITION

Classification: 229/158

One extension projects through two separate openings in another extension:

(under subclass 155) Subject matter wherein the interconnection is formed by at least a portion of one extension extending through two spaced openings (an opening being either a slit or an aperture) in another extension. [figure] [caption]separate openings, one extension

SEE OR SEARCH THIS CLASS, SUBCLASS:

149+, for a foldable wall extension having a depending flange or tab which extends along an adjacent box wall and through an opening in the box material.