Whether filing based on actual use or proposed use of a trademark, it is best to file an application as quickly as possible. Log in to access forms.Select the type of form listed below for direct links to TEAS and TEASi forms. File a trademark application and other documents online through TEAS. The Patent and Trademark Resource Center at Minneapolis Central Library offers access to powerful search tools for researching patents and trademarks. We're going to talk about how to file your own trademark application with the united states patent and trademark office. Federal Registration Requirements. The Trademark Electronic Application System (TEAS) allows you to fill out online USPTO forms. If you need help filling out the forms or need advice on your case, you could visit a legal advice clinic or find a lawyer on your own.