USD311314SExpiredUtility
Push-button ratchet wrench
Individually held — no corporate assignee on recordPriority: Sep 12, 1988Filed: Sep 12, 1988Granted: Oct 16, 1990
Est. expirySep 12, 2008(expired)· nominal 20-yr term from priority
Inventors:Bao-Li Chang
51
PatentIndex Score
9
Cited by
3
References
1
Claims
Claims
exact text as granted — not AI-modifiedThe ornamental design for a push-button ratchet wrench, as shown and described.
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