USD424193SExpiredUtility

Airway valve

46
Assignee: NTC TECH INCPriority: Oct 15, 1998Filed: Oct 15, 1998Granted: May 2, 2000
Est. expiryOct 15, 2018(expired)· nominal 20-yr term from priority
Inventors:William J. WohltmannBarry J. FeldmanJohn R. NobileJohn L. SandorJohn A. Triunfo, Jr.
46
PatentIndex Score
7
Cited by
19
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for an airway valve, as shown and described.

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