Cadastral Clearance Act Article 29

A superficies registered before December 31,1956, without a definite duration, and the right holder’s domicile being unknown or the right holder being missing, and no building improvements or other work on the land, which the landowner may apply for registration of cancellation, shall be noticed for a period of three months by the registration authority, and if there is no objection filed before the deadline, shall be registered of cancellation.The provisions of Article 9 shall be mutatis mutandis applied to the dealing of the objection within the period of notice of the preceding paragraph.The landowners shall be liable for damages of the superficiary who has sustained loss caused by registration of cancellation of the preceding Paragraph 1.
中文原文 地籍清理條例第29條
中華民國四十五年十二月三十一日以前登記之地上權,未定有期限,且其權利人住所不詳或行蹤不明,而其土地上無建築改良物或其他工作物者,土地所有權人得申請塗銷登記,由登記機關公告三個月,期滿無人異議,塗銷之。
前項公告期間異議之處理,準用第九條規定辦理。
因第一項塗銷登記致地上權人受有損害者,由土地所有權人負損害賠償責任。

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