USPC Class Details

Description: 297 chairs and seats / 297 chairs and seats/(135) with table, desk, or easel (157.1) table with opposed seating (158.3) planar horizontal seating (e.g., picnic table)

Hierarchy/Derived subclasses

297 / 135-> 157.1-> 158.3-> 158.4
   -> 158.5

uspto searches

Patent Apps in 297/158.3

Granted Patents in 297/158.3

Use the links above or do an advanced search in ppubs for:
(297/158.3.ccls. or 297/158.4.ccls. or 297/158.5.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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