USD251721SExpiredUtility

Aircraft

48
Individually held — no corporate assignee on recordPriority: Nov 1, 1976Filed: Nov 1, 1976Granted: May 1, 1979
Est. expiryNov 1, 1996(expired)· nominal 20-yr term from priority
Inventors:Anthony J. StewartDarel H. Porter
48
PatentIndex Score
7
Cited by
1
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an aircraft, as shown.

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