問題詳情
23 Under Article 70 of the Patent Act in Taiwan, an invention patent shall become extinguished where:
(A)the patent licensing term has expired.
(B)the patentee has passed away with heirs.
(C)the patentee fails to pay the patent annuity within the time period provided by the Patent Act.
(D)the patentee has pledged the patent.
參考答案
答案：C
難度：困難0.347826
統計：A(7),B(3),C(8),D(3),E(0)