USD305154SExpiredUtility

Precast concrete wall

16
Individually held — no corporate assignee on recordPriority: Sep 2, 1988Filed: Sep 2, 1988Granted: Dec 19, 1989
Est. expirySep 2, 2008(expired)· nominal 20-yr term from priority
Inventors:Peter MullerCharles L. KellermanJames E. Sirhall
16
PatentIndex Score
1
Cited by
2
References
1
Claims

Claims

exact text as granted — not AI-modified
The ornamental design for a precast concrete wall, as shown and described.

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