USPC Class Details

Description: 16 miscellaneous hardware (e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.) / 16 miscellaneous hardware (e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.)/(2.1) bushing (2.3) bung or tap

Hierarchy/Derived subclasses

16 / 2.1-> 2.3-> 2.4

uspto searches

Patent Apps in 16/2.3

Granted Patents in 16/2.3

Use the links above or do an advanced search in ppubs for:
(16/2.3.ccls. or 16/2.4.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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