保ほ護ご期き間かん

noun

protection period (of copyright)

Legal term referring to the duration of copyright protection. Often used in contexts discussing intellectual property law.

• 著ちょ作さく権けんの保ほ護ご期き間かんは、作さく者しゃの死し後ご70年ねんです。

  The copyright protection period is 70 years after the author's death.