This Opposition was filed at the USPTO Trademark Trial and Appeal Board (TTAB) on October 18, 2022 and assigned serial number 91281247 by the TTAB.

Plaintiff:
Celltrion Holdings Co., Ltd. represented by KISUK LEE of HARNESS, DICKEY & PIERCE, PLC.
Trademark Information: CELLTRION – US Trademark Serial Number 79101488
View Trademark Status at USPTO
View Trademark Documents at USPTO

Defendant:
Whittaker, John represented by DANIEL N. SMITH of NEW ENGLAND PATENT & TRADEMARK.
Trademark Information: CELLTRITION – US Trademark Serial Number 88918758
View Trademark Status at USPTO
View Trademark Documents at USPTO

Prosecution History:
October 18, 2022 – FILED AND FEE
October 18, 2022 – NOTICE AND TRIAL DATES SENT; ANSWER DUE:
October 18, 2022 – INSTITUTED
December 08, 2022 – NOTICE OF DEFAULT
View this TTAB Proceeding at USPTO

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