– Its owner fails to pay the validity maintenance or prolongation fee as prescribed;
– Its owner declares to relinquish the industrial property rights;
– Its owner no longer exists or the owner of a certificate of registered mark is no longer engaged in business activities without any lawful heir;
– The mark has not been used by its owner or his/her licensee without justifiable reasons for 5 consecutive years prior to a request for termination of validity, except where the use is commenced or resumed at least 3 months before the request for termination;
– The owner of a certificate of registered collective mark fails to supervise or ineffectively supervises the implementation of the regulation on use of collective marks;
– The owner of a certificate of registered certification mark violates the regulation on use of certification marks or fails to supervise or ineffectively supervises the implementation of such regulation;
– The geographical conditions decisive to reputation, quality or special characteristics of products bearing a geographical indication have changed resulting in the loss of such reputation, quality or characteristics of products.
