USPC Class Details

Description: D28 cosmetic products and toilet articles / d28 cosmetic products and toilet articles/(9) toilet articles and beauty parlor equipment not elsewhere specified (10) hair device not elsewhere specified (14) (21) comb (30) with handle (31) rake or pick type

Hierarchy/Derived subclasses

D28 / 9-> 10-> 14-> 21-> 30-> 31

uspto searches

Patent Apps in D28/31

Granted Patents in D28/31

Advanced search in patft or appft for the hierarchy would be:

Press the Search button below to send the query to the USPTO site. (Granted patents search)

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.