USPC Class Details

Description: 75 specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures / 75 specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures/(330) processes (392) producing or treating free metal (414) at 300 degrees c or greater (e.g., pyrometallurgy, etc.) (433) iron(fe) (438) making wrought iron(fe) (439) pouring molten iron(fe) into molten slag (i.e., aston process)

Hierarchy/Derived subclasses

75 / 330-> 392-> 414-> 433-> fe-> 438 -> 439 

uspto searches

Patent Apps in 75/439

Granted Patents in 75/439

Use the links above or do an advanced search in ppubs for:
(75/439.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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