USPC Class Details

Description: 720 dynamic optical information storage or retrieval / 720 dynamic optical information storage or retrieval/(600) particular cabinet structure for optical media (656) reproducing diverse-type media (e.g., cartridge and disc)

Hierarchy/Derived subclasses

720 / 600

-> 656

uspto searches

Patent Apps in 720/656

Granted Patents in 720/656

Use the links above or do an advanced search in ppubs for:
(720/656.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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