USD457971SExpiredUtility

Barrier block

72
Priority: Aug 31, 2001Filed: Aug 31, 2001Granted: May 28, 2002
Est. expiryAug 31, 2021(expired)· nominal 20-yr term from priority
Inventors:Mark SchraderNeil Harrigan
72
PatentIndex Score
26
Cited by
14
References
1
Claims

Claims

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

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