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) (315) with a member in the nature of a rotation preventing key movable laterally into engagement with the threaded elements

Hierarchy/Derived subclasses

411 / 190	-> 315	-> 316	-> 317	-> 318
		-> 319	-> 320

uspto searches

Patent Apps in 411/315

Granted Patents in 411/315

Use the links above or do an advanced search in ppubs for:
(411/315.ccls. or 411/316.ccls. or 411/317.ccls. or 411/318.ccls. or 411/319.ccls. or 411/320.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.