Half-step staircase structure
Description
It is to be understood that bracket in all figure indicates that the precise staircase structure is not claimed.
Claims
The ornamental design for a half-step staircase structure, as shown and described.
Referenced Cited
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
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
Classifications
Current U.S. Class:
Stepped (12) (D25/63)