USD507291SExpiredUtility
Electronic keyboard instrument
Est. expiryJan 7, 2024(expired)· nominal 20-yr term from priority
Inventors:Sunao Okamura
48
PatentIndex Score
6
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an electronic keyboard instrument, as shown.
Join the waitlist — get patent alerts
Track USD507291S — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.