USD320644SExpiredUtility

Swing check valve

47
Individually held — no corporate assignee on recordPriority: Jun 8, 1987Filed: Jun 8, 1987Granted: Oct 8, 1991
Est. expiryJun 8, 2007(expired)· nominal 20-yr term from priority
Inventors:John P. Scaramucci
47
PatentIndex Score
4
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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