USD540782SExpiredUtility
Speaker box
Est. expiryFeb 16, 2026(expired)· nominal 20-yr term from priority
Inventors:Kenji Katsumata
76
PatentIndex Score
21
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for a speaker box, as shown.Join the waitlist — get patent alerts
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