USPC Class Details – HistoricIP

Description: 266 metallurgical apparatus / 266 metallurgical apparatus/(114) having means for contacting a solid metalliferous material or metal object with a liquid (117) with means to prevent warping of treated object

Hierarchy/Derived subclasses

266 / 114	-> 117	-> 118
		-> 119

uspto searches

Patent Apps in 266/117

Granted Patents in 266/117

Use the links above or do an advanced search in ppubs for:
(266/117.ccls. or 266/118.ccls. or 266/119.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.