USPC Class Details

Description: 65 glass manufacturing / 65 glass manufacturing/(376) processes of manufacturing fibers, filaments, or preforms (438) producing crimped, twisted, or curled fibers (e.g., textured, etc.)

Hierarchy/Derived subclasses

65 / 376

-> 438

uspto searches

Patent Apps in 65/438

Granted Patents in 65/438

Use the links above or do an advanced search in ppubs for:
(65/438.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.

Display:

Back