USPC Class Details

Description: D21 games, toys, and sports goods / d21 games, toys, and sports goods/(398) toy (483) representation or scale model (484) construction type (e.g., building block) (500) rectangular (e.g., rectilinear form) (501) including open area

Hierarchy/Derived subclasses

D21 / 398

-> 483

-> 484

-> 500

-> 501

uspto searches

Patent Apps in D21/501

Granted Patents in D21/501

Use the links above or do an advanced search in ppubs for:
(D21/501.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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