USPC Class Details

Description: 342 communications: directive radio wave systems and devices (e.g., radar, radio navigation) / 342 communications: directive radio wave systems and devices (e.g., radar, radio navigation)/(350) directive (385) beacon or receiver (386) with transmisson of bearing or position determinative signals (387) iso-chronic type (388) loran (389) loran-c (390) with cycle selection

Hierarchy/Derived subclasses

342 / 350

-> 385

-> 386

-> 387

-> 388

-> 389

-> 390

uspto searches

Patent Apps in 342/390

Granted Patents in 342/390

Use the links above or do an advanced search in ppubs for:
(342/390.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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