USD539918SExpiredUtility
Manhole guard
Individually held — no corporate assignee on recordPriority: Jul 19, 2005Filed: Jul 19, 2005Granted: Apr 3, 2007
Est. expiryJul 19, 2025(expired)· nominal 20-yr term from priority
Inventors:Richard F. Denmon
35
PatentIndex Score
6
Cited by
12
References
1
Claims
Claims
exact text as granted — not AI-modifiedCLAIM
The ornamental design for a manhole guard, as shown and described.Join the waitlist — get patent alerts
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