Canadian Subclass Details

Description: 253 / (1) Lubricants (28) Organic (107) Oxygen (117) Carboxylic Esters (121) From Polyhydric Alcohols

Hierarchy/Derived subclasses

253 / 1

-> 28

-> 107

-> 117

-> 121

CIPO search

search just 253/121

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.

Display:

Back