USD311107SExpiredUtility
Drill screw bit holder
Individually held — no corporate assignee on recordPriority: May 18, 1988Filed: May 18, 1988Granted: Oct 9, 1990
Est. expiryMay 18, 2008(expired)· nominal 20-yr term from priority
Inventors:John French
28
PatentIndex Score
2
Cited by
2
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a drill screw bit holder, as shown and described.
Join the waitlist — get patent alerts
Track USD311107S — get alerts on status changes and closely related new filings.
We store only your email — no account needed. See our privacy policy.