請問美國專利有效期之判斷? - 專利

By Bethany
at 2010-09-26T21:59
at 2010-09-26T21:59
Table of Contents
請問美國專利有效期之判斷
我知道在1995年6月以前申請
是申請日+20 或獲證日+17
以後申請的就是申請日+20
可是我看不懂為何有些有效期的判斷
會包括"Related US Application Data"這項
請問是不管何時申請的都要考慮這項嗎?
判斷有效期就是以裡面第一篇為準嗎?
再請問假設以US 6166183這篇為例
它是在1997.10.27 filed
在2000.12.26獲證
"Related US Application Data"這項最遠可追溯到1989.12.22
那麼這篇專利到底有效期是何時呢?
煩請各位先進指導,感謝各位
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