USPC Class Details – HistoricIP

Description: 2 apparel / 2 apparel/(171) head coverings (323) strip connected spaced holders (326) plural, crossed, or diverging suspension strips or strands (327) crossed or closed loop shoulder type

Hierarchy/Derived subclasses

2 / 171	-> 323	-> 326	-> 327	-> 328
				-> 329

uspto searches

Patent Apps in 2/327

Granted Patents in 2/327

Use the links above or do an advanced search in ppubs for:
(2/327.ccls. or 2/328.ccls. or 2/329.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.