TRADEMARKS & SERVICE MARKS APPLICATIONS IN USA CAN BE FILED ON ANY OF THE FOLLOWING BASIS
Trademark application based on intent to use the mark in the US. In this case, the registration certificate will not be issued before filing a statement of use confirming use in the US.
Trademark application based on prior use of the mark in the US. In this case, the date of first use and a proof of the same will be filed along with the application.
It can be filed based on home or foreign application/registration. In this case, a copy of the application/registration certificate covering the same list of goods/services should be filed with the application.