USPC Class Details

Description: 313 electric lamp and discharge devices / 313 electric lamp and discharge devices/(364) cathode ray tube (441) ray generating or control (446) including cathode assembly (447) with control grid adjacent cathode (448) with anode (449) with additional electrode (451) with support

Hierarchy/Derived subclasses

313 / 364

-> 441

-> 446

-> 447

-> 448

-> 449

-> 451

uspto searches

Patent Apps in 313/451

Granted Patents in 313/451

Use the links above or do an advanced search in ppubs for:
(313/451.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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