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/(15) having separate expander means (21) having securing element projecting through aperture in sleeve

Hierarchy/Derived subclasses

411 / 15

-> 21

-> 22

-> 23

uspto searches

Patent Apps in 411/21

Granted Patents in 411/21

Use the links above or do an advanced search in ppubs for:
(411/21.ccls. or 411/22.ccls. or 411/23.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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