A certificate of registration shall remain in force for ten (10) years;
Provided, That, without need of any notice from the Office, the registrant shall file a declaration
of actual use and evidence to that effect, or shall show valid reasons based on the existence of
obstacles to such use, as prescribed by these Regulations, within one (1) year from the fifth
anniversary of the date of the registration of the mark. Otherwise, the Office shall remove the
mark from the Register. Within one (1) month from receipt of the declaration of actual use or
reason for non-use, the Examiner shall notify the registrant of the action taken thereon such as
acceptance or refusal.