Canadian Subclass Details

Description: 182 / (19) Filters (65) Cylindrical With Radial Flow (e.g., Cartridges) (78) With Flow-or-Pressure-Responsive Valve (79) With Indicator

Hierarchy/Derived subclasses

182 / 19

-> 65

-> 78

-> 79

CIPO search

search just 182/79

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.