Section 6(a) of the Trademark Act, 15 U.S.C. §1056(a), states, in part, "The Director may require the applicant to disclaim an unregistrable component of a mark otherwise registrable." See In re Creative Goldsmiths of Wash., Inc., 229 USPQ 766, 768 (TTAB 1986) ("[W]e conclude that it is within the discretion of an Examining Attorney to require the disclaimer of an unregistrable component (such as a common descriptive, or generic, name) of a composite mark sought to be registered on the Principal Register under the provisions of Section 2(f).").