USPC Class Details – HistoricIP

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 (22) back-to-leg prop (23) single element forms back post and front leg

Hierarchy/Derived subclasses

297 / 16.1

-> 19

-> 21

-> 22

-> 23

uspto searches

Patent Apps in 297/23

Granted Patents in 297/23

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