USD325621SExpiredUtility

Flow control valve

50
Individually held — no corporate assignee on recordPriority: Feb 21, 1989Filed: Feb 21, 1989Granted: Apr 21, 1992
Est. expiryFeb 21, 2009(expired)· nominal 20-yr term from priority
Inventors:Robert W. Hengesbach
50
PatentIndex Score
5
Cited by
67
References
1
Claims

Claims

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

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