Canadian Subclass Details

Description: 183 / (72) Filtration (78) Movable Medium

Hierarchy/Derived subclasses

183 / 72-> 78-> 79
  -> 80
  -> 81
  -> 82

CIPO searches

search just 183/78

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((183/78 <IN> CPC) <OR> (183/79 <IN> CPC) <OR> (183/80 <IN> CPC) <OR> (183/81 <IN> CPC) <OR> (183/82 <IN> CPC))

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.
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