USPC Class Details

Description: 454 ventilation / 454 ventilation/(69) vehicle (e.g., automobile, etc.) (83) railcar, bus, or trailer (115) having outlet airway (117) with air pump (e.g., wind or wheel-axle operated, etc.)

Hierarchy/Derived subclasses

454 / 69

-> 83

-> 115

-> 117

uspto searches

Patent Apps in 454/117

Granted Patents in 454/117

Use the links above or do an advanced search in ppubs for:
(454/117.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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