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 (25) combined (27) including clip (15)

Hierarchy/Derived subclasses

D28 / 9-> 10-> 14-> 21-> 25-> 27-> 15

uspto searches

Patent Apps in D28/27

Granted Patents in D28/27

Advanced search in patft or appft for the hierarchy would be:
(ccl/D28/27 or ccl/D28/15)

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.