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 (498) disc type player or recorder (500) shelf type (502) front loading (503) with extended disc tray

Hierarchy/Derived subclasses

D14 / 496

-> 498

-> 500

-> 502

-> 503

-> 504

uspto searches

Patent Apps in D14/503

Granted Patents in D14/503

Use the links above or do an advanced search in ppubs for:
(D14/503.ccls. or D14/504.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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