Let's assume I have missed the 12 month term and haven't filed neither regular patent nor national patents via PCT. The invention was disclosed only under NDAs during that time.
Is it legal to just file the exact same PPA again and refer to the second application during regular patent application and PCT national patent applications? I.e. will patents be granted if the patent offices (US, and others) will know about the first PPA?
If #1 is not legal/possible - can an addition of a narrow dependent claim be interpreted as a new, separate PPA and referred to in US/international PCT filing?
If also #2 is not legal/possible - how different should the second PPA be?
If #1/#2 is legal/possible - what if I indeed file a second PPA on month 16 and then regular patent based on the second PPA on month 27 but it turns out that somebody has stolen my idea and filed a patent on month 8 after my first PPA.
4.1. Will I be able to disqualify the thief using my first PPA?
4.2. Can this have negative impact on my own patent?