What if the IP forgot to switch to the simplified tax system?

Question

Individual entrepreneur

Hello, I just registered an IP and applied for a patent. The IP was registered on May 8, 2018. I did not submit an application for the simplified tax system + 6% when submitting documents for registering an IP (a familiar accountant helped with registration).
Then I read on the Internet that if I don’t apply for the transition to the simplified tax system 6% within 30 days after registration, then I will have an OSNO and it will be possible to switch to the simplified tax system 6% only next year, right? If so, then if I work on a patent, will I need to submit reports on the OSNO?
In the next half year, I do not plan to go "beyond" the issued patent, but you never know how fate will turn out, so it's not too late to think about applying for the USN 6%. I told my accountant friend (who helped with the registration of IP) that I want to apply for the STS 6%. He, in turn, expressed concern that the tax authorities might "lose" the issued patent and start counting me on the simplified tax system 6% due to the fact that they first filed for a patent, and then for the simplified tax system. The question is, is it possible to combine the simplified tax system of 6% and a patent, and will there be any problems later with the tax?
The story came out long, here are the questions that interest me:
1. If 30 days after the registration of the IP, I do not apply for the simplified tax system 6%, will I have OSNO automatically selected?
2. If you work only within the framework of a patent,
3. Is it possible to combine USN 6% and a patent?
4. Can the procedure for filing applications: first for a patent, and then for the simplified tax system 6% make the tax "forget" about the patent?

Answer 1

1. Yes.
2. Yes.
3. In the general case, it is possible.
4. No, it can't.