Patent ID: 7698863

Claim:
A window assembly comprising: (a) first, second, third, and fourth frame pieces; each of the first, second, third, and fourth frame pieces having first and second opposite ends, an inside face, and a muntin-engaging face; (i) the inside face defining a glass-receiving groove therein; (ii) the muntin-engaging face being orthogonal to the inside face and defining a muntin-receiving channel, wherein the muntin-engaging faces of each of the first, second, third, and fourth frame pieces are oriented on the same side of the glass-receiving grooves; (b) the first, second, third, and fourth frame pieces being connected together to form a rectangular frame; (i) the first frame piece first end being connected to the third frame piece first end by a rabbet joint; the first frame piece glass-receiving groove being in communication with the third frame piece glass-receiving groove; (ii) the first frame piece second end being connected to the fourth frame piece first end by a rabbet joint; the first frame piece glass-receiving groove being in communication with the fourth frame piece glass-receiving groove; (iii) the second frame piece first end being connected to the third frame piece second end by a rabbet joint; the second frame piece glass-receiving groove being in communication with the third frame piece glass-receiving groove; (iv) the second frame piece second end being connected to the fourth frame piece second end by a rabbet joint; the second frame piece glass-receiving groove being in communication with the fourth frame piece glass-receiving groove; (c) a first muntin oriented in the first frame piece muntin-receiving channel and the second frame piece muntin-receiving channel; and (d) a second muntin oriented in the third frame piece muntin-receiving channel and the fourth frame piece muntin-receiving channel; (i) the first and second muntin crossing over to engage at a first half lap joint; (e) a glass pane oriented in the window assembly and received by the first frame piece glass-receiving groove, the second frame piece glass-receiving groove, the third frame piece glass-receiving groove and the fourth frame piece glass-receiving groove; (f) a third muntin oriented in the first frame piece muntin-receiving channel and the second frame piece muntin-receiving channel; (i) the glass pane being between the third muntin and the first muntin; and (g) a fourth muntin oriented in the third frame piece muntin-receiving channel and the fourth frame piece muntin-receiving channel; (i) the glass pane being between the fourth muntin and the second muntin; (ii) the third and fourth muntin crossing over to engage at a second half lap joint.