USD249368SExpiredUtility

Breathing face mask

82
Assignee: ATO INCPriority: Jul 21, 1976Filed: Jul 21, 1976Granted: Sep 12, 1978
Est. expiryJul 21, 1996(expired)· nominal 20-yr term from priority
Inventors:Dudley W. Watkins, Jr.
82
PatentIndex Score
21
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a breathing face mask, substantially as shown.

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