USD501935SExpiredUtility

Wall block

99
Assignee: KEYSTONE RETAINING WALL SYSTEMPriority: Jul 21, 2003Filed: Jul 21, 2003Granted: Feb 15, 2005
Est. expiryJul 21, 2023(expired)· nominal 20-yr term from priority
Inventors:William B. DawsonRobert A. Macdonald
E04C 1/395B28B 7/241E02D 29/025B28B 7/24B28B 7/00E04C 1/39E02D 29/02
99
PatentIndex Score
97
Cited by
4
References
1
Claims

Claims

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

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