USPC Class Details

Description: 454 ventilation / 454 ventilation/(49) workstation ventilator (e.g., hood, offtake, etc.) (56) covered workbench chamber (e.g., fume hood, etc.) (57) having air inlet separate from access opening (58) including flow adjustment means

Hierarchy/Derived subclasses

454 / 49

-> 56

-> 57

-> 58

-> 59

uspto searches

Patent Apps in 454/58

Granted Patents in 454/58

Use the links above or do an advanced search in ppubs for:
(454/58.ccls. or 454/59.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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