USD539414SExpiredUtility
Multi-fan frame
Est. expiryMar 31, 2026(expired)· nominal 20-yr term from priority
F04D 25/166
99
PatentIndex Score
139
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for a multi-fan frame, as shown and described.Join the waitlist — get patent alerts
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