USD246671SExpiredUtility

Mouthpiece block for underwater breathing apparatus

58
Individually held — no corporate assignee on recordPriority: Dec 15, 1975Filed: Dec 15, 1975Granted: Dec 13, 1977
Est. expiryDec 15, 1995(expired)· nominal 20-yr term from priority
Inventors:Leon A. Cerniway
58
PatentIndex Score
8
Cited by
8
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a mouthpiece block for underwater breathing apparatus, as shown and described.

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