Trademark Act Article 58

Time limit on filing invalidation and exceptionNo invalidation shall be filed, or no proposal for an invalidation shall be submitted, against a trademark registration on the grounds that such registration falls under Subparagraph 1 or 3 of Paragraph 1 of Article 29, any of Subparagraphs 9 through 15 of Paragraph 1 of Article 30, or Paragraph 3 of Article 65 if the registration has at that date been published for not less than five years.The period referred to in the preceding paragraph shall not apply to the invalidation against a trademark registration on the grounds that such registration falls under Subparagraph 9 or 11 of Paragraph 1 of Article 30 if the registration was applied for in bad faith.
中文原文 商標法第58條
商標之註冊違反第二十九條第一項第一款、第三款、第三十條第一項第九款至第十五款或第六十五條第三項規定之情形,自註冊公告日後滿五年者,不得申請或提請評定。
商標之註冊違反第三十條第一項第九款、第十一款規定之情形,係屬惡意者,不受前項期間之限制。

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