USD508739SExpiredUtility

Construction block

76
Priority: Sep 24, 2004Filed: Sep 24, 2004Granted: Aug 23, 2005
Est. expirySep 24, 2024(expired)· nominal 20-yr term from priority
Inventors:Curtis W. Shillingburg
76
PatentIndex Score
21
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
I claim the ornamental design for a construction block, as shown.

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