Patent ID: 7141291

Claim:
A three dimensional window treatment structure adapted for disposition along at least an upper edge of a window, said window treatment structure comprising a folded panel comprising a first segment defining a face board portion of the window treatment structure and a second segment defining a dust board portion of the window treatment structure and wherein a score line is disposed at the intersection between the first segment and the second segment defining a hinge between the first segment and the second segment and wherein a plurality of score lines are disposed along opposing lateral edges of the first segment in transverse orientation to the score line defining the hinge between the first segment and the second segment such that segments of the folded panel outboard of the score lines along opposing lateral edges of the first segment define foldable side board portions of the window treatment structure, the folded panel comprising a fibrous felted material of entangled polymeric fibers wherein at least a portion of said entangled polymeric fibers are melt fused together such that a plurality of fiber to fiber fusion bonding points are distributed within said fibrous felted material and wherein the window treatment structure is an open bottom comice, the first segment and the second segment being displaceable in hinging relation around the score line at the intersection between the first segment and the second segment to define a substantially right angle relation between the face board portion and the dust board portion at the score line.