USD279515SExpiredUtility
Air vent attachment for crash helmets
Individually held — no corporate assignee on recordPriority: Feb 9, 1983Filed: Feb 9, 1983Granted: Jul 9, 1985
Est. expiryFeb 9, 2003(expired)· nominal 20-yr term from priority
Inventors:Calvin P. Peyton
6
PatentIndex Score
0
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for an air vent attachment for crash helmets, as shown.
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