USPC Class Details

Description: 370 multiplex communications / 370 multiplex communications/(259) special services (260) conferencing (263) conferee signals combined or distributed via time channels (264) using plural diverse channel communications with a dedicated signaling channel (i.e., isdn)

Hierarchy/Derived subclasses

370 / 259-> 260-> 263-> 264

uspto searches

Patent Apps in 370/264

Granted Patents in 370/264

Use the links above or do an advanced search in ppubs for:
(370/264.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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