USPC Class Details

Description: D8 tools and hardware / d8 tools and hardware/(300) handle, knob or pull (321) element or attachment (16)

Hierarchy/Derived subclasses

D8 / 300-> 321-> 16-> 322

uspto searches

Patent Apps in D8/321

Granted Patents in D8/321

Use the links above or do an advanced search in ppubs for:
(D8/321.ccls. or D8/16.ccls. or D8/322.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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