How to calculate the digital currency margin

1. digital currency needs some margin, because if the amount of digital currency is relatively large, there will be risks

2. [invention]
Name: an artificial stone with health care function and its preparation method
Application No.: 200910149915.8
application date: June 22, 2009
applicant: Yanji kexi'an medical device Co., Ltd

3. Proof of patent right. Of course, most of the time it is symbolic. As long as the State Intellectual Property Office registers the patent as valid, the patent is yours. You don't need a certificate to deal with them. But sometimes when you need to prove, such as litigation, application for awards, corporate publicity, you may need him to show your face, and the patent certificate is only issued once, not reissued (the certificate is useless to the Patent Office), so don't lose it.

4. Invention patent for more than three years
since the acceptance of the witness number
before authorization, it can be temporarily used
to get the certificate, etc.
(there should be supplementary statements, such as similar to XX patent, return, re payment, statement is not like this, and then wait, very boring.)

5. It can be registered and inquired in the patent examination information inquiry network of China and other countries

6. This one has already been sold. It should not be bought back. Moreover, it depends on the price. This is actually an investment