The period of protection varies, but a trademark can be renewed indefinitely beyond the time limit on payment of additional fees.

保护期不等，但只要缴纳额外费用，商标就可超出时限无限续展。

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Article 38 No time limit shall be set on the term of protection for the rights provided for in Subparagraphs (1) and (2) of the first paragraph in Article 37 of this Law.

第三十八条本法第三十七条第一款第(一)项、第(二)项规定的权利的保护期不受限制。

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This paper describes a new technique of microcomputertransmission line's protection. The technique adopts three kinds of typical opposite time limit specific equation.

本文论述了一种基于自适应神经元方法实现输电线路的单片机反时特性曲线的新技术。

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