USD417904SExpiredUtility
Showerhead filter system
Individually held — no corporate assignee on recordPriority: Oct 19, 1998Filed: Oct 19, 1998Granted: Dec 21, 1999
Est. expiryOct 19, 2018(expired)· nominal 20-yr term from priority
Inventors:John H. Douglas
57
PatentIndex Score
10
Cited by
6
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a showerhead filter system, as shown and described.
Join the waitlist — get patent alerts
Track USD417904S — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.