Patent A, JP priority date:2000/4, US filing date:2001/2, US publication date:2001/11, JP publicaiton date:2001/11, US issue date: 2003/4. (JP unexamed)
Patent B, US filing date:2000/7, US issue date: 2002/10
Patent C, US filing date: 2001/1, US issue date: 2002/5
请大家帮帮忙把,以上三篇专利假设专利范围都一样,那么请问到底谁是有效的? (请先在不考虑发明日的情况下讨论,如果有兴趣可以继续讨论发明日以及发明地的问题) |
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