File a provisional patent application (costs $75 if you do it
yourself). My lawyer charges me about $750 when he does it and I know
I am getting soaked but thats business.
Next, find a salvage company that might be interested and have them
sign a Non-disclosure agreement. Most legit companies have no probs
with such NDA. Ascertain the level of interest, if it is real, go for
the patent along with its costs (probably about $8000).

Good Luck