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问题	国际专利有效期
释义	法律分析：二十年。发明专利权期限为二十年，实用新型专利权，外观设计专利权期限为十年，均自申请之日起计算。法律依据：《中华人民共和国专利法》第四十二条发明专利权的期限为二十年，实用新型专利权和外观设计专利权的期限为十年，均自申请日起计算。
随便看	协议生效的四个条件是什么？有效的协议具备什么条件有效合同的构成要件是如何规定的协议的有效要件是什么协议生效需要哪些基本条件协议成立的条件与协议生效的条件分别有哪些协议具有哪些情况下才具有法律效力？有效合同能够具备的条件是什么什么是合同有效的条件有效合同的构成要件包括哪些构成有效合同的条件是什么有效合同的条件是什么意思有效的协议具备什么条件协议生效构成要件是什么协议效力的四种情况有哪些？有效合同的条件是什么意思？协议成立的条件与协议无效的情形有哪些？有效合同的构成条件是什么？什么是协议的效力,协议生效的一般条件有效协议应具备的条件有哪些有效合同的构成条件是什么协议效力的要件有哪些协议成立的条件与协议生效的条件分别有哪些？协议生效条件包含哪些协议生效应当具备的要件包括什么 administrative department in charge of foreign affairs administrative department in charge of foreign economic and trade administrative department in charge of forestry administrative department in charge of forests administrative department in charge of geological prospecting administrative department in charge of health administrative department in charge of import and export commodity inspection administrative department in charge of joint ventures administrative department in charge of justice administrative department in charge of labor administrative department in charge of land administrative department in charge of machine-building industry administrative department in charge of mineral resources administrative department in charge of patent administrative department in charge of personnel matters administrative department in charge of physical culture and sports administrative department in charge of planning administrative department in charge of postal service administrative department in charge of post and telecommunications administrative department in charge of price control administrative department in charge of railroads administrative department in charge of raw and semifinished materials industries administrative department in charge of realty management administrative department in charge of supervision administrative department in charge of surveying and mapping

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