United States Patent 3738041

A collapsible box-like structure of paperboard having an open top, a viewing opening through the vertical front wall, a display on the forward side of the vertical back wall, and a bottom wall inner surface which is reflective, the bottom wall having a greater length front to back than the distance between the front and back walls which enables the bottom wall to be tilted upwardly back to front, thereby serving both to maintain the box-like configuration of the structure and also to reflect light toward the display.

Application Number:
Publication Date:
Filing Date:
Primary Class:
Other Classes:
International Classes:
G09F13/00; G09F19/00; (IPC1-7): G09F13/16
Field of Search:
View Patent Images:
US Patent References:
1809688Display sign1931-06-09Goudey et al.
1680855Illusion device1928-08-14Burns
1606314Advertising device1926-11-09Massey

Foreign References:
Primary Examiner:
Grieb, Wm H.
Assistant Examiner:
Pitrelli, John F.
What I claim is

1. A collapsible rectangular paperboard box, said box consisting of two side walls, a front wall and a rear wall and a bottom wall and having an open top, said front wall having a viewing aperture therethrough through which said rear wall may be viewed, said rear wall including informative material on its inner surface to be viewed via said aperture, said bottom wall having a light reflecting inner surface tilted so as to reflect light ingressing via said open top toward said informative material to illuminate said informative material, said bottom wall being hingedly secured to said rear wall only at least adjacent the lower edge of said rear wall and otherwise unsecured to said box.

2. The combination according to claim 1, wherein said bottom wall is paperboard internally coated with light reflecting material.

3. The combination according to claim 2, wherein said light reflecting material is one of metal foil, metalized paper and metalized ink.

4. The combination according to claim 1, wherein the back to front length of said bottom wall is considerably greater than the distance between said front and back walls and extends from said front wall to said back wall and is shaped to maintain the open configuration of said box while tilted without blocking said peepholes.

5. The combination according to claim 1, wherein said box is rectangular in cross section.


It is known to fabricate boxes with peepholes in a wall, which render visible advertising material existent on inside walls of the boxes. It is old to provide mirrors within or as walls of boxes, for various purposes. It has not been known to utilize a light reflective wall of a collapsible box commonly for providing illumination for a wall of the box by reflecting light toward the latter wall, and to utilize that same reflective wall to maintain the box in expanded form.


A collapsible box, having an open top and which is held open by a reflective bottom wall tilted to reflect light toward an advertisement bearing wall of the box, and having a peephole in a side wall opposed to the advertisement bearing wall.


The single FIGURE of the drawings is a view in perspective of a box according to the drawings.


The numerals 10, 11, 12, 13 identify four vertical walls of a collapsible box having an open top. The corners of the angles may all be formed by adhesively taping discrete sheets of paperboard, or the box may be formed of one sheet of paperboard, appropriately scored and bent, leaving one angle to be secured by tape.

Advertising material 14, 15, 16 may be provided on the outer surfaces of the side walls 10, 11 of the box and/or on the outer surface of the front wall 12. The latter, includes a peephole, 20, located approximately mid-point, through which may be viewed advertising 21, located on the inner surface of back wall 13.

A bottom wall 25 is pivoted along its rear edge to the rear wall 13, and its inner wall is coated with a layer, 26, of any light reflecting material, e.g., metal foil, metalized papers, metalized inks. The back-to-front dimension of bottom wall 25 is greater than is the distance between the front wall and the back wall. Accordingly, when the box is assembled in open or operative condition, the forward edge 27 of the bottom wall 25 is located well up on the front wall, but not so far up as to block the aperture 20. Thereby, the bottom wall 25 serves to maintain the shape of the open box, while the reflecting material 26 serves to reflect light, ingressing into the box from above, toward the advertising material on the inner rear wall surface.

In use, the front wall of the box may be taped to a show window of a store, restaurant, etc., through which the advertising material may be viewed, particularly via peephole 30. Since the sole function of the reflecting material 26 is to illuminate, and not to reflect an image, no true mirror is present or required, but a layer of metal foil, metalized paper or metalized ink is adequate.

Particularly, the box may be secured to a store window at about eye level, and the material on the outside of the box may be such as to pique the curiosity of the passerby, and to impel him to peer through the peephole to the rear wall of the box where resides the primary message to be conveyed. The bottom wall, with its reflective surface, sloping up toward the inner front wall, reflects light passing into the box via the open top toward the inner back wall. The tilt of the bottom wall assures that no light will be directed by the reflecting surface toward the eye of the observer who is peering through the peephole, so that he may clearly perceive the information printed on the rear wall.