USD299440SExpiredUtility

Barricade warning light testing device

12
Individually held — no corporate assignee on recordPriority: Apr 28, 1986Filed: Apr 28, 1986Granted: Jan 17, 1989
Est. expiryApr 28, 2006(expired)· nominal 20-yr term from priority
Inventors:Thomas W. Barker
12
PatentIndex Score
0
Cited by
4
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a barricade warning light testing device, as shown.

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