USPC Class Details

Description: 455 telecommunications / 455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (20) with frequency conversion (22) plural conversion stages

Hierarchy/Derived subclasses

455 / 7

-> 20

-> 22

uspto searches

Patent Apps in 455/22

Granted Patents in 455/22

Use the links above or do an advanced search in ppubs for:
(455/22.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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