USD297767SExpiredUtility

Block wall

98
Assignee: KEYSTONE RETAINING WALL SYSTEMS INCPriority: May 11, 1987Filed: May 11, 1987Granted: Sep 20, 1988
Est. expiryMay 11, 2007(expired)· nominal 20-yr term from priority
Inventors:Paul J. Forsberg
98
PatentIndex Score
75
Cited by
11
References
1
Claims

Claims

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

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.