USPC Class Details

Description: 414 material or article handling / 414 material or article handling/(137.1) marine loading or unloading system (139.4) marine vessel to/from shore (139.9) marine vessel to/from land or rail vehicle distinct from system (140.4) by use of swinging crane

Hierarchy/Derived subclasses

414 / 137.1

-> 139.4

-> 139.9

-> 140.4

uspto searches

Patent Apps in 414/140.4

Granted Patents in 414/140.4

Use the links above or do an advanced search in ppubs for:
(414/140.4.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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