USD304039SExpiredUtility

Railroad warning sign

62
Individually held — no corporate assignee on recordPriority: Dec 23, 1986Filed: Dec 23, 1986Granted: Oct 17, 1989
Est. expiryDec 23, 2006(expired)· nominal 20-yr term from priority
Inventors:Robert D. HendersonRobert L. Poore, Jr.
62
PatentIndex Score
13
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a railroad warning sign, as shown and described.

Join the waitlist — get patent alerts

Track USD304039S — get alerts on status changes and closely related new filings.

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