USD321928SExpiredUtility

Combination ball valve and check valve

90
Assignee: UNIVERSAL VALVE COMPANY INCPriority: Feb 28, 1989Filed: Feb 28, 1989Granted: Nov 26, 1991
Est. expiryFeb 28, 2009(expired)· nominal 20-yr term from priority
Inventors:Joseph V. Milo
90
PatentIndex Score
36
Cited by
16
References
1
Claims

Claims

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

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