USD316608SExpiredUtility

Ladder leveling attachment

37
Individually held — no corporate assignee on recordPriority: Jan 31, 1989Filed: Jan 31, 1989Granted: Apr 30, 1991
Est. expiryJan 31, 2009(expired)· nominal 20-yr term from priority
Inventors:John E. Wagner
37
PatentIndex Score
4
Cited by
5
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a ladder leveling attachment, as shown and described.

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