USD304501SExpiredUtility

Four cavity building block

65
Assignee: LITHIBAR MATIK INCPriority: Feb 17, 1987Filed: Feb 17, 1987Granted: Nov 7, 1989
Est. expiryFeb 17, 2007(expired)· nominal 20-yr term from priority
Inventors:Emerson J. VanwassehnovaPercy K. Sagar
65
PatentIndex Score
15
Cited by
3
References
1
Claims

Claims

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

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