USD310678SExpiredUtility

Key unit for a keyboard musical instrument

Assignee: TAKEFUJI KANPEIPriority: Jul 30, 1987Filed: Jan 25, 1988Granted: Sep 18, 1990

Est. expiryJul 30, 2007(expired)· nominal 20-yr term from priority

PatentIndex Score

Cited by

References

Claims

exact text as granted — not AI-modified

The ornamental design for a key unit for a keyboard musical instrument, as shown and described.

Join the waitlist — get patent alerts

Track USD310678S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.