USPC Class Details – HistoricIP

Description: D14 recording, communication, or information retrieval equipment / d14 recording, communication, or information retrieval equipment/(496) video or audio transmission, recording or playback equipment (204) speaker or housing therefor (10) (210) with surround, grille or enclosure

Hierarchy/Derived subclasses

D14 / 496	-> 204	-> 10	-> 210	-> 211
				-> 212
				-> 213
				-> 214
				-> 215

uspto searches

Patent Apps in D14/210

Granted Patents in D14/210

Use the links above or do an advanced search in ppubs for:
(D14/210.ccls. or D14/211.ccls. or D14/212.ccls. or D14/213.ccls. or D14/214.ccls. or D14/215.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.