Thanks, I looked up the code:
CHAPTER 17 - SECRECY OF CERTAIN INVENTIONS AND FILING APPLICATIONS IN FOREIGN COUNTRIES
181 Secrecy of certain inventions and withholding of patent.
182 Abandonment of invention for unauthorized disclosure.
183 Right to compensation.
184 Filing of application in foreign country.
185 Patent barred for filing without license.
http://www.bitlaw.com/source/35usc/
Now there are even more questions.
A 181 secrecy patent is for those working with the government. And can't be kept secret after 1 year.
But you knew, that..right?
Yes I know! I am exempt.