After 3 years since the date that a trademark is granted, any third party can request its cancellation for non-use. At the same time, if within the legal term no suitable probative material of said use is filed, the registration will be cancelled and the third party that claimed for this action, will have a preferential right to obtain the exact same trademark registration.
Aside from a non-use cancellation action, a registration can be cancelled because of the trademark’s vulgarization or the sign’s notoriety in favor of a third party.