Application of Alexander Weber

ALMOND, Judge.

This is an appeal from a decision of the Board of Appeals rejecting claims 20 through 23 and 25 of appellant’s patent application Ser. No. 466,389, filed November 2, 1954.

The application discloses a Venetian blind having vertical slats suspended at their upper ends from runner elements slidable in a horizontal track. Swivel connections are interposed between the upper ends of the slats and the runner elements to permit each slat to turn on its vertical axis in unison by pulling a draw cord to change the angle that the-slats make with the plane of the window.The slats are made in…