USPC Class Details

Description: 297 chairs and seats / 297 chairs and seats/(16.1) collapsible chair; i.e., relatively folding bottom, back, and legs (19) with means to hold chair in plural operative configurations (21) set means operative between back post and rear leg

Hierarchy/Derived subclasses

297 / 16.1

-> 19

-> 21

-> 22

-> 23

uspto searches

Patent Apps in 297/21

Granted Patents in 297/21

Use the links above or do an advanced search in ppubs for:
(297/21.ccls. or 297/22.ccls. or 297/23.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