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) (39) hair fastener, e.g., bobby pin, clip, etc. (40) spring clip type

Hierarchy/Derived subclasses

D28 / 9-> 10-> 14-> 39-> 40

uspto searches

Patent Apps in D28/40

Granted Patents in D28/40

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.