USD434158SExpiredUtility

Ladder step extender

51
Individually held — no corporate assignee on recordPriority: Feb 7, 2000Filed: Feb 7, 2000Granted: Nov 21, 2000
Est. expiryFeb 7, 2020(expired)· nominal 20-yr term from priority
Inventors:Donald R. ArmstrongPhillip F. Bolf
51
PatentIndex Score
10
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a ladder step extender, as shown.

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