Canadian Subclass Details

Description: 154 / (41) Processes (53) Tubes and Cylindrical Structures (53.05) Spiral Wind (53.06) Profiled Surface or Open Helix (53.08) Spiral Wind over Open Helix

Hierarchy/Derived subclasses

154 / 41

-> 53

-> 53.05

-> 53.06

-> 53.08

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search just 154/53.08

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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