USD567829SExpiredUtility

Refractory block

70
Assignee: HARBISON WALKER REFRACTORIESPriority: Apr 29, 2005Filed: Apr 29, 2005Granted: Apr 29, 2008
Est. expiryApr 29, 2025(expired)· nominal 20-yr term from priority
Inventors:John J. StephanskyJohn E. Berry
E04B 2/06F27D 1/141F27D 1/04F27D 1/0006E04B 2002/0208
70
PatentIndex Score
6
Cited by
9
References
1
Claims

Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for the refractory block, as shown as described.

Join the waitlist — get patent alerts

Track USD567829S — get alerts on status changes and closely related new filings.

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