USD673299SActiveUtility

Half-step staircase structure

43
Individually held — no corporate assignee on recordPriority: May 4, 2011Filed: May 4, 2011Granted: Dec 25, 2012
Est. expiryMay 4, 2031(~4.8 yrs left)· nominal 20-yr term from priority
Inventors:John R. Balducki
43
PatentIndex Score
9
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a half-step staircase structure, as shown and described.

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