USD301064SExpiredUtility

Convex block

97
Assignee: KEYSTONE RETAINING WALL SYSTEMS INCPriority: May 14, 1986Filed: May 14, 1986Granted: May 9, 1989
Est. expiryMay 14, 2006(expired)· nominal 20-yr term from priority
Inventors:Paul J. Forsberg
97
PatentIndex Score
69
Cited by
33
References
1
Claims

Claims

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

Join the waitlist — get patent alerts

Track USD301064S — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.