1904.01(a) Section 66(a) Basis
Section 66(a) of the Trademark Act provides a basis for filing in the United States. See 37 C.F.R. §§2.34(a)(5), 2.44(a)(4)(v), 2.45(a)(4)(v). A basis under §66(a) may not be combined with any other basis. 37 C.F.R. §2.34(b), 2.44(c), 2.45(c). A §66(a) applicant may not change the basis unless the applicant meets the requirements for transformation under §70(c) of the Trademark Act, 15 U.S.C. §1141j(c). 37 C.F.R. §2.35(a). See TMEP §1904.09 regarding transformation.
Section 66(a) requires transmission of a request for extension of protection by the IB to the USPTO and cannot be added or substituted as a basis in an application originally filed under §1 or §44.