USD319684SExpiredUtility

Swing check valve

42
Individually held — no corporate assignee on recordPriority: Jun 15, 1987Filed: Jun 15, 1987Granted: Sep 3, 1991
Est. expiryJun 15, 2007(expired)· nominal 20-yr term from priority
Inventors:John P. Scaramucci
42
PatentIndex Score
3
Cited by
19
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a swing check valve, as shown and described.

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