USD316904SExpiredUtility
Convex block
Individually held — no corporate assignee on recordPriority: Nov 21, 1988Filed: Nov 21, 1988Granted: May 14, 1991
Est. expiryNov 21, 2008(expired)· nominal 20-yr term from priority
Inventors:Paul J. Forsberg
94
PatentIndex Score
42
Cited by
41
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a convex block, as shown and described.
Join the waitlist — get patent alerts
Track USD316904S — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.