USD640878SActiveUtility

Wheeled step stool

81
Assignee: HUANG CHIA-LINGPriority: Feb 16, 2011Filed: Feb 16, 2011Granted: Jul 5, 2011
Est. expiryFeb 16, 2031(~4.5 yrs left)· nominal 20-yr term from priority
Inventors:Chia-Ling HuangChun-Lung Liu
81
PatentIndex Score
30
Cited by
9
References
1
Claims

Claims

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

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