Conclusion

Compare the prototype with what can be the invention, it is like comparing these two cars :



Admittedly, they have all two 4 wheels and an engine, but one cannot really say that it is the same thing ;)
It is only the beginning and all is to be made. The disadvantages of the prototypes can be circumvented and there is much, much upgrading evolutions...

Time assigned to sell the patent being past, nothing will come to compensate nor to reward these months for work and investment. Being only one humble private individual, that has constrained me to stop the development.

For the curious ones, you can read the patent deposits in May 2008 : here (in French)