USD424211SExpiredUtility

Roof ladder

29
Individually held — no corporate assignee on recordPriority: Apr 30, 1998Filed: Apr 30, 1998Granted: May 2, 2000
Est. expiryApr 30, 2018(expired)· nominal 20-yr term from priority
Inventors:James D. Smith
29
PatentIndex Score
0
Cited by
3
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a roof ladder, as shown and described.

Join the waitlist — get patent alerts

Track USD424211S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.