USPC Class Details

Description: 454 ventilation / 454 ventilation/(69) vehicle (e.g., automobile, etc.) (78) waterborne (79) freight

Hierarchy/Derived subclasses

454 / 69-> 78-> 79-> 80

uspto searches

Patent Apps in 454/79

Granted Patents in 454/79

Use the links above or do an advanced search in ppubs for:
(454/79.ccls. or 454/80.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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