USPC Class Details

Description: 248 supports / 248 supports/(441.1) easel; book, copy or music score holder (454) with adjustable inclination (455) prop maintains surface in adjusted position

Hierarchy/Derived subclasses

248 / 441.1-> 454-> 455-> 456

uspto searches

Patent Apps in 248/455

Granted Patents in 248/455

Use the links above or do an advanced search in ppubs for:
(248/455.ccls. or 248/456.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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