you can use the trademark after you get the notice of acceptance of trademark application, but before the official trademark right is issued, you can only use TM instead of R. TM means the trademark right inspection period without formal authorization. Time required to register a trademark: 1. It will be delivered to the Trademark Office of the State Administration for Industry and Commerce about one month to accept the number file. 2. Six months after the application is accepted, the Trademark Office conducts substantive examination of the trademark (six months). 3. After substantive examination, that is, about 8-1 months after the application, the Trademark Office will issue a preliminary notice and send it to the applicant. 4. After 3 months from the date of announcement, the trademark registration will be approved and a formal Trademark Registration Certificate will be issued. 5. The total registration time is about 12-18 months. 6. The trademark can be used correctly after the application is filed (don't use the registration mark R).