Staircase

FIG. 1 is a top front perspective view of a staircase showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

Number	Name	Date	Kind
D273231	Suckno	Mar 1984	S
5632124	Weingarten et al.	May 1997	A
D478999	Jobs et al.	Aug 2003	S
7165362	Jobs et al.	Jan 2007	B2
D695913	Backus et al.	Dec 2013	S
20140079474	Andreini et al.	Mar 2014	A1

Entry
Kourakis, I., et al., “Design of a Glass Stair,” 2010 Structures Congress, pp. 2650-2659, American Society of Civil Engineers, published May 2010, 10 pages.
Images believed to be of Apple's Amsterdam (The Netherlands) store. Believed opened Mar. 3, 2012. Image source: http://www.apple.com/nl/retail/amsterdam/ (accessed May 16, 2014).
Images believed to be of Apple's Boylston Street (Boston) store. Believed opened May 15, 2008. Image source: http://www.apple.com/retail/boylstonstreet/ (accessed May 16, 2014).
ifo Apple Store, “Buchannan Street—First Interior Photos,” http://www.ifoapplestore.com/stores/buchanan—street/photos—first/ (accessed May 16, 2014). Store believed opened Aug. 25, 2007.
ifo Apple Store, “Fifth Avenue—Grand Opening,” http://www.ifoapplestore.com/stores/fifth—avenue/photo4/index.html (accessed May 16, 2014). Store believed opened May 19, 2006.
ifo Apple Store, “Shinsaibashi Apple Store Interiors,” http://www.ifoapplestore.com/stores/shinsaibashi/photo2/ (dated Aug.26, 2004; accessed May 16, 2014). Store believed opened Aug. 28, 2004.
2010 Structures Congress copyright 2010 ABCE “Design of a Glass Stair”.