USD307738SExpiredUtility
Folding hub assembly for propeller blades
Individually held — no corporate assignee on recordPriority: Jun 1, 1988Filed: Jun 1, 1988Granted: May 8, 1990
Est. expiryJun 1, 2008(expired)· nominal 20-yr term from priority
Inventors:Thomas C. Kerr
26
PatentIndex Score
2
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a folding hub assembly for propeller blades, as shown and described.
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