USD243837SExpiredUtility
Ducted fan aircraft
Individually held — no corporate assignee on recordPriority: Mar 25, 1976Filed: Mar 25, 1976Granted: Mar 29, 1977
Est. expiryMar 25, 1996(expired)· nominal 20-yr term from priority
Inventors:James Travis Adams
67
PatentIndex Score
11
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a ducted fan aircraft, as shown and described.
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