Canadian Subclass Details

Description: 253 / (1) Lubricants (28) Organic (86) Sulphur (96) Heavy Metal

Hierarchy/Derived subclasses

253 / 1

-> 28

-> 86

-> 96

CIPO search

search just 253/96

This will show what classes derive from the input. Ex: entering 78/35 shows the derived classes and the search that can be used to find patents in those subclasses.