USPC Class Details

Description: 266 metallurgical apparatus / 266 metallurgical apparatus/(168) means for treating ores or for extracting metals (171) by means applying heat to work, e.g., furnace (197) shaft-type furnace, e.g., blast furnace

Hierarchy/Derived subclasses

266 / 168	-> 171	-> 197	-> 198
			-> 199

uspto searches

Patent Apps in 266/197

Granted Patents in 266/197

Use the links above or do an advanced search in ppubs for:
(266/197.ccls. or 266/198.ccls. or 266/199.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