USPC Class Details

Description: 313 electric lamp and discharge devices / 313 electric lamp and discharge devices/(11) with temperature modifier (37) for filament or heated cathode (38) hollow shield around filament or cathode

Hierarchy/Derived subclasses

313 / 11

-> 37

-> 38

uspto searches

Patent Apps in 313/38

Granted Patents in 313/38

Use the links above or do an advanced search in ppubs for:
(313/38.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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