USPC Class Details – HistoricIP

Description: 337 electricity: electrothermally or thermally actuated switches / 337 electricity: electrothermally or thermally actuated switches/(14) electrothermally actuated switches (142) fusible element actuated (227) fuse link carrier or holder (228) cartridge or tube (251) contact or terminal structure (252) attaching or securing means (to the tube or to the fusible element) (253) locking, clamp or wedge means

Hierarchy/Derived subclasses

337 / 14

-> 142

-> 227

-> 228

-> 251

-> 252

-> 253

-> 254

uspto searches

Patent Apps in 337/253

Granted Patents in 337/253

Use the links above or do an advanced search in ppubs for:
(337/253.ccls. or 337/254.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.