US PATENT SUBCLASS 229 / 141
.~.~.~ Extension includes a depending flange or tab which extends along an adjacent box wall

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}
141.~.~.~ Extension includes a depending flange or tab which extends along an adjacent box wall {9}
142  DF  .~.~.~.~> Two or more extensions include a depending flange or tab {1}
144  DF  .~.~.~.~> Flange connected to two box walls by a foldable web
145  DF  .~.~.~.~> Plural flanges interconnected to form a skirt {1}
147  DF  .~.~.~.~> Flange or tab folded to extend along two or more box walls
148  DF  .~.~.~.~> Flange or tab includes slit or aperture to receive a projection from a box wall
149  DF  .~.~.~.~> Flange or tab extends through opening in box material {1}
151  DF  .~.~.~.~> Flange or tab extends between two layers of box material
152  DF  .~.~.~.~> Flange or tab extends into box interior {1}
154  DF  .~.~.~.~> Extension includes two or more depending flanges or tabs

DEFINITION

Classification: 229/141

Extension includes a depending flange or tab which extends along an adjacent box wall:

(under subclass 126) Subject matter wherein the extension includes a foldable element which, when the extension is in its closed position, overlies all or part of a box wall bordering the access opening. [figure]

(1) Note. The "foldable element" may extend either exteriorly or interiorly of the box.

(2) Note. The "foldable element" may be anything from a relatively small "lug" or "ear" which is attached along only a fraction of the length or width of extension (i.e., a "tab") to a piece of paperboard which is attached along substantially the entire length or width of the extension and may cover most or all of an adjacent box wall (i.e., a "flange").

SEE OR SEARCH THIS CLASS, SUBCLASS:

125.19+, for a separate closure having similar flange or tab structure.