Log in to access forms. Select the type of form listed below for direct links to TEAS and TEASi forms.We're going to talk about how to file your own trademark application with the united states patent and trademark office. You can file an application to register your trademark or service mark with an intenttouse (ITU) filing basis. Allegheny County Central TCD Version If you lived in any of these PSD Codes at any point in the year, you must file this form (Replaces PGH-40). These forms will be useful when filing required documents related to estates of deceased or incapacitated persons.