The following can be grounds for cancellation:
- proprietary rights
- the mark is descriptive
- the mark is not distinctive
- the mark is misleading, deceptive or disparaging
- the mark is functional
- notorious or well-known mark
- protection of armorial bearings, flags and other State emblems
- representation of the proprietor of the mark
- trade names
- rights in a personal name
- the mark is generic
- geographical indication
- the mark is against public policy or principles of morality