USD304487SExpiredUtility
Flow control valve and nozzle
Individually held — no corporate assignee on recordPriority: Jul 26, 1988Filed: Jul 26, 1988Granted: Nov 7, 1989
Est. expiryJul 26, 2008(expired)· nominal 20-yr term from priority
Inventors:Robert W. Hengesbach
46
PatentIndex Score
4
Cited by
48
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a flow control valve, as shown and described.
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