Hierarchy/Derived subclasses
| 313 / 111 | -> 137 | -> 138 |
CIPO search
search just 313/138This 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.
Canadian Subclass Details
Description: 313 / (111) Envelope With Gas Or Vapor (137) Particular Gas or Vapor (e.g. Metal Vapor) (138) Rare (e.g. Inert, Noble)
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.
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.