USD311325SExpiredUtility
Air ratchet hanging device
Individually held — no corporate assignee on recordPriority: Feb 29, 1988Filed: Feb 29, 1988Granted: Oct 16, 1990
Est. expiryFeb 29, 2008(expired)· nominal 20-yr term from priority
Inventors:Michael C. Sullivan
42
PatentIndex Score
4
Cited by
18
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a air ratchet hanging device, as shown and described.
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