USPC Class Details – HistoricIP

Description: 494 imperforate bowl: centrifugal separators / 494 imperforate bowl: centrifugal separators/(43) rotatable bowl (47) including means for imparting other movement to bowl in whole or in part before, during or after its axial rotation (48) axial movement of one portion of bowl wall relative to another (e.g., for discharging)

Hierarchy/Derived subclasses

494 / 43

-> 47

-> 48

uspto searches

Patent Apps in 494/48

Granted Patents in 494/48

Use the links above or do an advanced search in ppubs for:
(494/48.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.