我比較笨 請問一下jas-39 跟 idf 大小差多少 ??

另外穿過樹林 是否有考慮 FOD 的問題 ?

配重這麼 tricky . 不過能想出用一個引擎驅動兩個渦輪風扇 (one internal turbo fan, one vertical fan for take off / landing only) 也很不簡單了 . 尤其是垂直起降的時候機翼完全幫不上忙 . 看樣子推重比還要往上調 , 不然每次垂直降落都得把外載油箱和彈藥投棄 .

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 )

http://strategis.ic.gc.ca/sc_mrksv/...ee_part6-e.html
Tariff of Fees - Patents Part Vl - Maintenance Fees

For maintaining an application filed on or after October 1, 1989 in effect, under subsections 99 and 154 of these Rules Large entity (Small entity 50% of large entity)
Yr 2-4 - $100
Yr 5-9 - $200
Yr 10-14 - $250
Yr 15-19 - $450

31. For maintaining the rights accorded by a patent issued on the basis of an application filed on or after October 1, 1989, under sections 100, 101, 155 and 156 of these Rules Large entity (Small entity 50% of large entity)

Yr 2-4 - $100
Yr 5-9 - $200
Yr 10-14 - $250
Yr 15-19 - $450


Large entity including an additional fee for late payment (Small entity 50% of the applicable maintenance fee for a large entity plus $200 for the late payment)

Yr 2-4 - $300
Yr 5-9 - $400
Yr 10-14 - $450
Yr 15-19 - $650

連轉貼都要做手腳, "minimium fee", "or more" 這些字眼, 還有一些細項(add 50%, add 100%), 怎麼都不見啦?

而且根據我工作單位的經驗, 這個agent 開的價錢偏低喔, 而且你找的到底是哪個國家的資料阿? 你知道美國的專利法跟歐洲加拿大日本台灣都不太一樣嗎?

PS. 連internet search 都可以一小時收$150美金, 看來我該轉行了

http://www.invention-protection.com...nance_Fees.html
Pay Those Patent Maintenance Fees

© 2003, Gallagher & Dawsey Co., LPA
January 2003

A utility patent holder must pay issuance fees at 3 years and 6 months, 7 years and 6 months, and 11 years and 6 months after grant. The fees currently range from $890 for the first maintenance fee to $3150 for the last maintenance fee, with small entities paying half those amounts. The fees are due on or before the date the maintenance is due, although there is a six month grace period after the due dates, during which time the maintenance fees can be paid with, currently, a $130 (half for small entities) fee.

===================================
$890 for the first maintenance fee to $3150 for the last maintenance fee
===================================

[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] ==> 你在鬼扯些什麼 ? 人家美國專利商標局最多不過是收三千美元 . 您硬要拿五十萬/一百萬美元去孝敬美國專利商標局的話 , 布希大概真的要提拔生財有道的您來接管 USPTO .

多唸點有用的東西再開口也不遲 !

F-35B試飛時就發生眾目睽睽之下無法垂直起飛,只有垂直降落才成功的出糗場面,主要還是重量太重,前面那顆舉升風扇是禍首~~~

F-35B機翼還是有排氣調整裝置
http://rouge.pinky.ne.jp/military/slbm/jsf.html