USPC Class Details – HistoricIP

Description: 411 expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener / 411 expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener/(190) having structure to restrict rotation of threaded, mating pieces (e.g., nut lock) (325) externally threaded element includes an axially extending opening in its free end for receiving an expander member

Hierarchy/Derived subclasses

411 / 190

-> 325

uspto searches

Patent Apps in 411/325

Granted Patents in 411/325

Use the links above or do an advanced search in ppubs for:
(411/325.ccls.)

This will show what classes derive from the input. Ex: entering 43/42.24 shows the derived classes and the search that can be used to find patents or patent applications in those subclasses.