USPC Class Details

Description: 300 brush, broom, and mop making / 300 brush, broom, and mop making/(20) handle setting

Hierarchy/Derived subclasses

300 / 20

uspto searches

Patent Apps in 300/20

Granted Patents in 300/20

Use the links above or do an advanced search in ppubs for:
(300/20.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.