USPC Class Details

Description: 19 textiles: fiber preparation / 19 textiles: fiber preparation/(65r) working (236) drafting (258) roll type (266) pressure-applying devices (271) uniform pressure applying to all rolls or plural pairs from a single source

Hierarchy/Derived subclasses

19 / 65r

-> 236

-> 258

-> 266

-> 271

uspto searches

Patent Apps in 19/271

Granted Patents in 19/271

Use the links above or do an advanced search in ppubs for:
(19/271.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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