USD312172SExpiredUtility

Key chain

56
Individually held — no corporate assignee on recordPriority: Feb 6, 1987Filed: Feb 6, 1987Granted: Nov 20, 1990
Est. expiryFeb 6, 2007(expired)· nominal 20-yr term from priority
Inventors:Robert A. Ambrosio
56
PatentIndex Score
14
Cited by
12
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a key chain, as shown.

Join the waitlist — get patent alerts

Track USD312172S — get alerts on status changes and closely related new filings.

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