USPC Class Details

Description: 48 gas: heating and illuminating / 48 gas: heating and illuminating/(197r) processes (211) oil

Hierarchy/Derived subclasses

48 / 197r-> 211-> 212
  -> 213

uspto searches

Patent Apps in 48/211

Granted Patents in 48/211

Use the links above or do an advanced search in ppubs for:
(48/211.ccls. or 48/212.ccls. or 48/213.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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