USPC Class Details – HistoricIP

Description: 442 fabric (woven, knitted, or nonwoven textile or cloth, etc.) / 442 fabric (woven, knitted, or nonwoven textile or cloth, etc.)/(181) woven fabric (i.e., woven strand or strip material) (239) woven fabric including an additional woven fabric layer (243) woven fabric layers comprise chemically different strand material (244) three or more fabric layers (245) one of which is a nonwoven fabric layer

Hierarchy/Derived subclasses

442 / 181

-> 239

-> 243

-> 244

-> 245

uspto searches

Patent Apps in 442/245

Granted Patents in 442/245

Use the links above or do an advanced search in ppubs for:
(442/245.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.