The following can be grounds for cancellation:

• proprietary rights
• breach of copyright
• the mark is descriptive
• the mark is functional
• the mark is generic
• the mark is not distinctive
• notorious or well-known mark
• rights in a personal name
• registered design rights
• the mark was applied for in bad faith
• the mark is misleading, disparaging or deceptive
• protection of armorial bearings, flags and other State emblems
• registration in the name of the agent or other representative of the proprietor of the mark
• the mark consists of a geographical indication
• the mark is against public policy or principles of morality