Hierarchy/Derived subclasses
| 253 / 1 | -> 28 | -> 98 |
CIPO search
search just 253/98This 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: 253 / (1) Lubricants (28) Organic (98) Phenolic Salts
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.