专利权的分类和保护期限是多长时间-法律综合法律援助-法律咨询免费平台-国际律师联盟

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问题	专利权的分类和保护期限是多长时间
释义	律师分析：在我国，不同类型的发明创造保护期限有所不同，发明专利权的期限为20年，实用新型专利权和外观设计专利权的期限为10年，均自申请日起计算。【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。
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