USPC Class Details

Description: 411 expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener / 411 expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener/(81) threaded fastener locked to a discreet structure (e.g., plate, rail, wheel) (89) member extending between plural fasteners and restricting the rotation thereof in one direction more than the other (e.g., pawl and ratchet)

Hierarchy/Derived subclasses

411 / 81-> 89

uspto searches

Patent Apps in 411/89

Granted Patents in 411/89

Use the links above or do an advanced search in ppubs for:
(411/89.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.
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