USD347286SExpiredUtility
Upper vent head
Individually held — no corporate assignee on recordPriority: Sep 8, 1992Filed: Sep 8, 1992Granted: May 24, 1994
Est. expirySep 8, 2012(expired)· nominal 20-yr term from priority
Inventors:Joseph C. Bancroft
54
PatentIndex Score
7
Cited by
4
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a upper vent head, as shown and described.
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