发明专利有效期为多少年-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	发明专利有效期为多少年
释义	【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。第四十三条专利权人应当自被授予专利权的当年开始缴纳年费。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	商标与商号冲突的成因商号和注册商标冲突要怎么办商号与商标冲突的原因是什么商号权与商标权会产生冲突吗如何解决商标权与商号权冲突事项商标与企业名称冲突怎么办？商号和注册商标冲突怎么办？商号权与商标权的冲突及原因是什么商号权与商标权的冲突如何解决呢商号和注册商标冲突应该怎么办？商号和注册商标冲突怎么样办商号和注册商标冲突怎样办商标与商号权利冲突产生的原因商标注册与商号一般会有什么冲突商号和注册商标冲突怎样办？商号权与商标权的冲突怎么解决为什么商号权与商标权会产生冲突商号和注册商标冲突应该怎么办商号和注册商标冲突如何办商号和注册商标冲突有什么办法怎样解决商标权与商号权的冲突商号和注册商标冲突有什么办法？商标与商号权利冲突的解决的规定是什么的商号和注册商标冲突如何办？商标与商号权利冲突的解决是怎样的 contract for placing orders for agricultural products contract for placing orders for aquatic products contract for placing orders for cotton contract for placing orders for grain contract for placing orders for nonferrous metals contract for placing orders for processing materials contract for placing orders for tobacco leaf contract for placing silk products on order contract for plant supply concerning foreign interests contract for popularization of technology contract for postage and distribution of newspapers or periodicals contract for postal circulation of magazines contract for power supply contract for processing and assembling contract for processing materials supplied by customer contract for processing under order contract for processing with customer's samples contract for processing work contract for procurement of postal delivery in rural areas contract for production and sales of plastics contract for publication contract for publication of books contract for publishing books contract for purchase and sale of crop seeds contract for purchase and sales of clothing

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