X4 PHARMACEUTICALS

Live / Registered — Registered (as of 13 Sept 2022)

What this means for you

Registered since 13 Sept 2022. The owner can stop confusingly similar uses in the classes it covers.

Record

Serial number
90847917
Registration number
6843124
Mark type
Stylized text
Filed
26 Jul 2021
Published for opposition
28 Jun 2022
Registered
13 Sept 2022
Attorney of record
Karen K. Won

Goods and services

  • Class 044 — Medical, beauty and agricultural services: providing information in the field of the treatment of cancers, rare diseases, primary immune disorders and other diseases; genetic testing for medical purposes; genetic testing for scientific research purposes

Owner

Prosecution history

  • 09 Dec 2025 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
  • 09 Dec 2025 — ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
  • 09 Dec 2025 — TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
  • 09 Dec 2025 — APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED
  • 09 Dec 2025 — TEAS CHANGE OF OWNER ADDRESS RECEIVED
  • 21 Oct 2025 — TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS
  • 21 Oct 2025 — TEAS CHANGE OF CORRESPONDENCE RECEIVED
  • 21 Oct 2025 — ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
  • 21 Oct 2025 — TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
  • 13 Sept 2022 — NOTICE OF REGISTRATION CONFIRMATION EMAILED
  • 13 Sept 2022 — REGISTERED-PRINCIPAL REGISTER
  • 28 Jun 2022 — OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
  • 28 Jun 2022 — PUBLISHED FOR OPPOSITION
  • 08 Jun 2022 — NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
  • 20 May 2022 — ASSIGNED TO LIE

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