引用:
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作者alchn
你知不知道就算通過的專利每年都還需要維持費? 以十年美國專利計算, 如果專利不能給你至少兩百萬美元的收入, 到最後你只會賠錢而已. 有人高興賠錢我是管不著的 
你要嘛就直接回答我的問題, 東扯西扯的只會模糊焦點 |
Here is part of my answer.
Costs for obtaining a patent
http://www.northwestpatent.com/costs.htm
Service My Fee PTO Fee* Notes
prepare patent application $150/hr $100-$2000
provisional application $2000 $100
PAT allowance and issue fee $300 $700 or $1000
PAT maintenance fee: after 3 years $300 $450
PAT maintenance fee: after 7 years $300 $1150
PAT maintenance fee: after 11 years $300 $1900
international (PCT) $600 $2500-$3000
http://answers.google.com/answers/threadview?id=17476
Q: Can 1989 US Patent be revived if no maintenance fees paid? ( Answered , 1 Comment )