USD335966SExpiredUtility

Step stool

88
Assignee: COSCO INCPriority: Feb 22, 1990Filed: Feb 22, 1990Granted: Jun 1, 1993
Est. expiryFeb 22, 2010(expired)· nominal 20-yr term from priority
Inventors:Robert A. SchwartzkopfRoy L. Ruggles
88
PatentIndex Score
44
Cited by
6
References
1
Claims

Claims

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

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