Canadian Subclass Details

Description: 313 / (140) With Support Or Spacer For Electrode Or Shield (152) For Filament

Hierarchy/Derived subclasses

313 / 140-> 152-> 153
  -> 154
  -> 155
  -> 156-> 157
   -> 158
  -> 159

CIPO searches

search just 313/152

- or -

search hierarchy!

The "search hierarchy!" link will execute this search:
((313/152 <IN> CPC) <OR> (313/153 <IN> CPC) <OR> (313/154 <IN> CPC) <OR> (313/155 <IN> CPC) <OR> (313/156 <IN> CPC) <OR> (313/157 <IN> CPC) <OR> (313/158 <IN> CPC) <OR> (313/159 <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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