USPC Class Details

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 (246) three or more fabric layers (250) woven fabric layers impregnated with a natural or synthetic rubber

Hierarchy/Derived subclasses

442 / 181

-> 239

-> 246

-> 250

uspto searches

Patent Apps in 442/250

Granted Patents in 442/250

Use the links above or do an advanced search in ppubs for:
(442/250.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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