The United States Patent and Trademark Office Trademark Trial and Appeal Board (USPTO TTAB) has issued a Notice of Default in opposition proceeding TTAB91304536. This action stems from an opposition filed by Birkenstock US BidCo, Inc. against jetline inc, concerning the KUSHIONSTOCK trademark. The filing date for this opposition was January 16, 2026, and the notice indicates a default judgment may be entered against jetline inc.

Legal professionals representing parties involved in trademark oppositions should note this default. If jetline inc fails to respond or cure the default, the TTAB may proceed to a final decision in favor of Birkenstock US BidCo, Inc. This could result in the cancellation or denial of registration for the KUSHIONSTOCK mark. Parties should review the original document for specific details on the default and any potential next steps or response requirements.