USPC Class Details

Description: 313 electric lamp and discharge devices / 313 electric lamp and discharge devices/(364) cathode ray tube (477r) envelope

Hierarchy/Derived subclasses

313 / 364-> 477r-> 478
  -> 479
  -> 480
  -> 481
  -> 482
  -> 477hc

uspto searches

Patent Apps in 313/477r

Granted Patents in 313/477r

Use the links above or do an advanced search in ppubs for:
(313/477r.ccls. or 313/478.ccls. or 313/479.ccls. or 313/480.ccls. or 313/481.ccls. or 313/482.ccls. or 313/477hc.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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