USD292916SExpiredUtility
Non-electronic sound amplifier
Est. expiryAug 24, 2004(expired)· nominal 20-yr term from priority
Inventors:Tameaki Ikeda
66
PatentIndex Score
12
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a non-electronic sound amplifier, as shown.
Join the waitlist — get patent alerts
Track USD292916S — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.