Half-step staircase structure

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FIG. 1 is a three quarter front, top, left perspective view of a half-step staircase structure showing my new design.

FIG. 2 is a front elevational view thereof, taken in the direction of arrow 2 in FIG. 6;

FIG. 3 is a left side view thereof taken in the direction of arrow 3 in FIG. 6;

FIG. 4 is a right side view taken in the direction of arrow 4 in FIG. 6;

FIG. 5 is a top view taken in the direction of arrow 5 in FIG. 6; and,

FIG. 6 is a view identical to FIG. 1 with directional arrows included.

It is to be understood that bracket in all figure indicates that the precise staircase structure is not claimed.


The ornamental design for a half-step staircase structure, as shown and described.

Referenced Cited
U.S. Patent Documents
2044260 June 1936 Schiele
2206862 July 1940 Boyd
D287283 December 16, 1986 Johnson
5355904 October 18, 1994 Wallum
D481467 October 28, 2003 Brice
D566298 April 8, 2008 Bornhorst et al.
7686138 March 30, 2010 Schmidt
20030024177 February 6, 2003 Hirata
Patent History
Patent number: D673299
Type: Grant
Filed: May 4, 2011
Date of Patent: Dec 25, 2012
Inventor: John R. Balducki (Oskaloosa, IA)
Primary Examiner: Doris Clark
Attorney: Richard L. Miller
Application Number: 29/373,633
Current U.S. Class: Stepped (12) (D25/63)