Variable volume box

DETAILED DESCRIPTION The variable size box of the present invention is related to those carton boxes used to contain cereals, powders, and the like typically available to consumers at grocery stores and supermarkets.
The variable size carton of the present invention has a front side, a back side, a right side, a left side, as well as a top and bottom portion.
On the top portion of the variable size box is a top closable lid.
The top lid has a top elongated lid flap attached to the top of the front side of the box as well as a top elongated lid flap attached to the top of the back side of the box.
Two side lid flaps are also located on the top portion of the box, one side lid flap being attached to the top of the right side of the box and one side lid flap being attached to the top of the left side of the box.
In this manner, one of the top elongated lid flaps, for example the front top elongated lid flap, has a tab which cooperates with a slit located on the other top elongated lid flap so as to secure the top lid.
The two top side lid flaps are located below the front and back top lid flaps when the top lid is closed.
At least one perforated line is located circumferentially around the sides of the box intermediate the top and bottom portion of the box so that the box may be reduced in size as the commodity within the box is consumed.
This is accomplished by cutting the box along a perforated line and disposing of the top portion of the box located above the just cut perforated line.
Attached to the interior side walls of the box are intermediate lid flaps at each of the at least one perforated line so as to securely close the reduced box in the same manner as the top lid flaps.
A flexible airtight lining may also be located within the box so as to prevent moisture from reaching the commodity stored therein.
The top of the airtight lining may be closed by folding the top of the lining.
The airtight lining has at least one circumferential perforated line located therearound sufficiently above each of the at least one perforated line around the box to allow the lining to be reduced in size by cutting or tearing the perforated line located just above the perforated line around the box just torn or cut while leaving a sufficient amount of lining just above the torn or cut perforated line of the box to allow the lining to be folded preventing moisture from entering the lining