USD389907SExpiredUtility
Duct for a toilet bowl ventilation system
Individually held — no corporate assignee on recordPriority: Mar 12, 1996Filed: Mar 12, 1996Granted: Jan 27, 1998
Est. expiryMar 12, 2016(expired)· nominal 20-yr term from priority
Inventors:Jerry F. Willis
24
PatentIndex Score
1
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a duct for a toilet bowl ventilation system, as shown and described.
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