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问题	发明专利有效期多久
释义	法律分析：发明专利有效期是二十年。并根据相关规定，发明专利权的有效期是二十年。而实用新型专利权和外观设计专利权的有效期是十年。且前述的相关专利权的有效期，均自申请日起计算。法律依据：《中华人民共和国专利法》第四十四条有下列情形之一的，专利权在期限届满前终止：（一）没有按照规定缴纳年费的；（二）专利权人以书面声明放弃其专利权的。专利权在期限届满前终止的，由国务院专利行政部门登记和公告。
随便看	非法吸收公众存款的受害人能否起诉民事非法吸收公众存款罪辩护词非法吸收公众存款罪量刑非法吸收公众存款还上的能判刑吗业务员非法吸收公共存款1000万如何判决催收上门合法嘛需要些什么证件？催收上门合法么需要什么证件？催收上门合法么,需要什么证件？催收上门合法嘛？需要什么证件催收上门合法嘛,需要些什么证件？催收上门合法吗,要求什么证件催收上门合法吗,需要什么证件？银行上门催收违法吗催收上门合法嘛,需要些什么证件催收上门合法么,需要什么证件催收上门合法么需要什么证件未经同意上门催收合法吗上门催收合法吗车辆二押违法吗我做二押车的，算不算是违法车辆二押违法吗？二押车被卖了,一押怎么办？二押车是不是合法的呢？二押车逾期被卖合法吗二押车被卖了怎么办 regulation on oil materials regulation on pets regulation on private enterprises regulation on robots regulation on the conservation of wild animals and plants regulation on the management of business registrations regulation on the management of commercial enterprises regulation on the organizations of primary militia regulation on the service of officers regulations Regulations regulations regulations concerning the management of trademarks regulations concerning the registration of trademarks regulations for collective enterprises regulations for preventing collisions at sea regulations for suppression of corruption regulations for the carriage of goods by sea regulations for the management of salt industry regulations for trial implementation regulations governing business operations under lease regulations governing conscription Regulations Governing Imperial Examinations regulations governing industrial enterprises owned by the whole people regulations governing pension and preferential treatment for servicemen

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