USPC Class Details

Description: D14 recording, communication, or information retrieval equipment / d14 recording, communication, or information retrieval equipment/(300) computer, data processor equipment (432) element or attachment (435) cartridge, chip or card

Hierarchy/Derived subclasses

D14 / 300	-> 432	-> 435	-> 435.1
			-> 436
			-> 437
			-> 438

uspto searches

Patent Apps in D14/435

Granted Patents in D14/435

Use the links above or do an advanced search in ppubs for:
(D14/435.ccls. or D14/435.1.ccls. or D14/436.ccls. or D14/437.ccls. or D14/438.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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