Trademark Act Article 47

Extinguishment of registrationRight of a registered trademark shall become extinguished under any of the following:(1)Where the right is not renewed pursuant to Article 34, such right shall become extinguished from the day following the date of expiry of the period of such right.(2)Where the proprietor of such trademark dies with no successor, such right shall become extinguished from the day following the date of death of such proprietor; or(3)Where the right is abandoned pursuant to Article 45, such right shall become extinguished from the date of receipt of a written statement on the abandonment at the Registrar Office.
中文原文 商標法第47條
有下列情形之一,商標權當然消滅:
一、未依第三十四條規定延展註冊者,商標權自該商標權期間屆滿後消滅。
二、商標權人死亡而無繼承人者,商標權自商標權人死亡後消滅。
三、依第四十五條規定拋棄商標權者,自其書面表示到達商標專責機關之日消滅。

English translation for reference only; the Chinese text prevails. Not legal advice.