USD331820SExpiredUtility
Protective face shield
Individually held — no corporate assignee on recordPriority: Sep 14, 1990Filed: Sep 14, 1990Granted: Dec 15, 1992
Est. expirySep 14, 2010(expired)· nominal 20-yr term from priority
Inventors:Thomas A. Scanlon
94
PatentIndex Score
66
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a protective face shield, as shown and described.
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