Holding that in the absence of evidence of intent to resume use during the period of non-use, the TTAB "may conclude the registrant has . . . failed to rebut the presumption of abandonment," even when there is evidence of intent to resume after the period of nonuse
Providing that in inter partes proceeding, "[t]he allegation in an application for registration, or in a registration, of a date of use is not evidence on behalf of the applicant or registrant" but, rather, "a date of use of a mark must be established by competent evidence"