USPC Class Details

Description: 213 railway draft appliances / 213 railway draft appliances/(7) cushioned (40r) springs (44) multiple (45) tandem arrangement (46r) separate springs for buff and draft

Hierarchy/Derived subclasses

213 / 7-> 40r-> 44-> 45-> 46r-> 46a

uspto searches

Patent Apps in 213/46R

Granted Patents in 213/46R

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.
Display:

Back