USPC Class Details

Description: D14 recording, communication, or information retrieval equipment / d14 recording, communication, or information retrieval equipment/(496) video or audio transmission, recording or playback equipment (140) telephone equipment (140.1) signal processor type (140.7) switchboard or multiple line access (140.9) with provision for telephone set attachment (140.11) includes screen

Hierarchy/Derived subclasses

D14 / 496

-> 140

-> 140.1

-> 140.7

-> 140.9

-> 140.11

uspto searches

Patent Apps in D14/140.11

Granted Patents in D14/140.11

Use the links above or do an advanced search in ppubs for:
(D14/140.11.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.

Display:

Back