Hierarchy/Derived subclasses
474 / 202 | -> 206 | -> 212 | -> 213 | -> 214 | -> 215 | -> 216 | -> 217 |
uspto searches
Patent Apps in 474/214Granted Patents in 474/214
Use the links above or do an advanced search in ppubs for:
(474/214.ccls. or 474/215.ccls. or 474/216.ccls. or 474/217.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.