To secure a date of first use in commerce the mark owner must use the mark in trade in a manner that allows consumers to rely on it to identify and discriminate between the user’s goods or services from those of competitors’. Furthermore, since the authority for the Trademark Act is based on the interstate commerce clause, the user must also demonstrate use in interstate commerce in order to obtain a federal registration. The interstate commerce requirement is met so long as use of the mark in trade includes activity that either crosses state lines or affects interstate commerce directly or indirectly such as by selling products or services to interstate travelers.