USD411019SExpiredUtility
Rolling stair
Individually held — no corporate assignee on recordPriority: Jun 26, 1998Filed: Jun 26, 1998Granted: Jun 15, 1999
Est. expiryJun 26, 2018(expired)· nominal 20-yr term from priority
Inventors:Charles G. Curtis
36
PatentIndex Score
8
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a rolling stair, as shown and described.
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