Envelopes – wrappers – and paperboard boxes – File folder or file envelope – Expandable
Reexamination Certificate
2000-10-16
2002-03-12
Garbe, Stephen P. (Department: 3727)
Envelopes, wrappers, and paperboard boxes
File folder or file envelope
Expandable
C040S359000, C229S077000, C229S084000
Reexamination Certificate
active
06354486
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a document holder more particularly to an expansible document holder.
2. Description of the Related Art
FIGS. 1 and 2
illustrate a conventional document holder
1
. The conventional document holder
1
includes a rectangular base wall
105
having left and right lateral edges and upper and lower edges, left and right lateral flaps
107
connected to the left and right lateral edges of the base wall
105
respectively along left and right folding lines
103
, and lower and upper flaps
106
,
104
connected to the lower and upper edges of the base wall
105
respectively along bottom and top folding lines
102
,
101
. The left and right lateral flaps
107
and the lower and upper flaps
106
,
104
are foldable relative to the base wall
105
, and cooperatively confine a document confining space thereamong. An elastic cord
108
has opposite ends anchored to the base wall
105
, and includes left and right cord portions disposed on an outer surface of the base wall
105
. The left and right cord portions are stretchable to overlie corner portions of the upper flap
104
so as to retain the upper and lower flaps
104
,
106
and the left and right lateral flaps
107
in a document confining position, as best shown in FIG.
2
. However, the cord portions of the elastic cord
108
are easily removed from the upper flap
104
when the conventional document holder
1
is being carried. Moreover, the conventional document holder
1
cannot receive a relatively large amount of documents, thereby resulting in inconvenience during use.
SUMMARY OF THE INVENTION
Therefore, the object of the present invention is to provide an expansible document holder that permits secure engagement between left and right lateral flaps and a lower flap.
According to the present invention, an expansible document holder includes a rectangular base wall, left and right lateral flaps, and lower and upper flaps.
The rectangular base wall has left and right lateral edges opposite to each other in a longitudinal direction, and upper and lower edges opposite to each other in a first transverse direction that is transverse to the longitudinal direction. The base wall further has inner and outer surfaces opposite to each other in a second transverse direction that is transverse to both the longitudinal direction and the first transverse direction.
The left and right lateral flaps are connected to the left and right lateral edges of the base wall respectively along first left and right folding lines that extend in the first transverse direction.
The lower and upper flaps are connected to the lower and upper edges of the base wall respectively along first bottom and top folding lines that extend in the longitudinal direction.
The left and right lateral flaps and the lower and upper flaps are foldable relative to the base wall to a document confining position, wherein the left and right lateral flaps are superposed on the inner surface of the base wall, wherein the lower flap and the left and right lateral flaps overlie each other, wherein the upper flap overlies the left and right lateral flaps and the lower flap, and wherein the left and right lateral flaps, the lower and upper flaps and the base wall cooperatively confine a document confining space thereamong.
The lower flap has opposite lateral portions that are disposed in an overlying manner with respect to the left and right lateral flaps in the document confining position. One of the left and right lateral flaps and the lateral portions of the lower flap in each overlying pair is formed with a tab slot. The other one of the left and right lateral flaps and the lateral portions of the lower flap in each overlying pair is provided with an anchoring tab that extends through the tab slot so as to inter-engage the lateral portions of the lower flap with the left and right lateral flaps.
REFERENCES:
patent: 646638 (1900-04-01), Cutler
patent: 1042488 (1912-10-01), Shaffer
patent: 1194440 (1916-08-01), Swortfiguer
patent: 1478248 (1923-12-01), Papparodis
patent: RE23029 (1948-08-01), Delson
patent: 4589682 (1986-05-01), Balland
patent: 5865469 (1999-02-01), Chin
patent: 5944353 (1999-08-01), Sato
patent: 5947524 (1999-09-01), Podosek
patent: 5993099 (1999-11-01), Greenberg et al.
patent: 6039473 (2000-03-01), Bond
Baker & Botts L.L.P.
Garbe Stephen P.
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