Will the original applicant of the TREx be notified in case of an override?

In case of an override, a notification is sent out to the Trademark Agent and the Trademark Holder (if NORN to holders is activated). 

FAQ

Account

API (Automated Interface)

Financial

general

proof of use

Registrars

Registries

TMCH Services

trademark record

trademark submission

TREx Service

user registration