關於美國市售商品的專利 - 專利

By Edward Lewis
at 2011-03-06T00:53
at 2011-03-06T00:53
Table of Contents
想請問
如果想要查一個商品
Lakewood carbon fiber heater
去USA PATENT 應該是要怎麼查比較快@@
因為手邊沒有專利號碼
然後看了一下 選了 HOW TO FIND A PATENT
進去後點了QUICK SEARCH
但都查不到...
目前知道這商品的公司 是LAKEWOOD 所在地為芝加哥
用了GOOGLE的PATENT搜尋也沒有~"~
不是應該所有商品都會有專利嗎...
希望有人可以指點我應該如何尋找
感激不盡
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Tags:
專利
All Comments

By Edith
at 2011-03-10T02:47
at 2011-03-10T02:47

By Irma
at 2011-03-14T23:25
at 2011-03-14T23:25

By Gilbert
at 2011-03-15T21:22
at 2011-03-15T21:22

By Ophelia
at 2011-03-18T08:56
at 2011-03-18T08:56
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