Hierarchy/Derived subclasses
235 / 33 | -> 30r | -> 30a |
uspto searches
Patent Apps in 235/30RGranted Patents in 235/30R
Use the links above or do an advanced search in ppubs for:
()
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.