Patent ID: 6189271
Filing Date: 2001-02-20
Classification: E04B

Abstract:
A structure having a plurality of interlocked members comprising:a first member having planar opposite sides, a top portion having a continuous linear tongue, a generally flat bottom surface, a first end, and a second end, a first upwardly open notch in the first end, and a second upwardly open notch in the second end, the portion of the first member between the first and second ends has a vertical dimension greater than the vertical dimension of each of the first and second ends, a second member having at least a pair of vertically aligned notches, said first notch of the first member being located in one notch of the second member, and a third member having at least one notch and a groove, said one notch of the third member being located in the other notch of the second member and the tongue of the first member being located in the groove of the third member.