USPC Class Details

Description: 477 interrelated power delivery controls, including engine control / 477 interrelated power delivery controls, including engine control/(34) transmission control (115) transmission controlled by engine (121) by input manifold pressure or engine fuel control (127) shift valve control (138) electric control (139) downshift control

Hierarchy/Derived subclasses

477 / 34

-> 115

-> 121

-> 127

-> 138

-> 139

uspto searches

Patent Apps in 477/139

Granted Patents in 477/139

Use the links above or do an advanced search in ppubs for:
(477/139.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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