USD403473SExpiredUtility
Inner/outer diameter pipe cleaning system
Individually held — no corporate assignee on recordPriority: Mar 5, 1997Filed: Mar 5, 1997Granted: Dec 29, 1998
Est. expiryMar 5, 2017(expired)· nominal 20-yr term from priority
Inventors:George F Hoppe
8
PatentIndex Score
1
Cited by
5
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a inner/outer diameter pipe cleaning system, as shown.
Join the waitlist — get patent alerts
Track USD403473S — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.