Who owns the NEFXTEND trademark?

The NEFXTEND trademark is owned by Calliditas Therapeutics AB.

What is the serial number for NEFXTEND?

The USPTO serial number for NEFXTEND is 98716551.

What is the registration number for NEFXTEND?

NEFXTEND is registered under USPTO registration number 0.

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Updated Sep 18, 2026·37 searches this week

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NEF

USPTO Trademark Record

PENDING

NEFXTEND

Q: What class is the NEFXTEND trademark registered in?

The NEFXTEND trademark is registered in Class 042 (Scientific, technology & SaaS services), Class 044 (Medical, veterinary & beauty care services).

SN 98716551·Reg 0·Filed Aug 26, 2024

Owner Calliditas Therapeutics AB

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.; Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, aquaculture, horticulture and forestry services.

NEFXTEND (Serial No. 98716551), Registration No. 0, is a pending US trademark filed on Aug 26, 2024 by Calliditas Therapeutics AB. This trademark covers Class 042 (Scientific, technology & SaaS services), Class 044 (Medical, veterinary & beauty care services).

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Mark Intelligence

NEFXTEND (Reg. #0) is a pending US trademark that was filed in 2024 and is currently under USPTO examination. The mark covers Class 042 (Scientific, technology & SaaS services) and Class 044 (Medical, veterinary & beauty care services) respectively. Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research.... The mark faced 2 opposition proceedings during prosecution.

FILED

Aug 26, 2024

SERIAL

98716551

REG#

REGISTERED

Dec 31, 1969

Filing Information

StatusPENDING

Filing DateAug 26, 2024

Serial Number98716551

Registration No.0

Registration DateDec 31, 1969

Status DateAug 04, 2026

Published for OppositionAug 04, 2026

Filing Basis & Declarations

Standard Characters Claimed

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

Class 044Medical, veterinary & beauty care services

US codes: 100, 101

Medical services; veterinary services; hygienic and beauty care for human beings or animals; agriculture, aquaculture, horticulture and forestry services.

This description is as filed with the USPTO and defines the scope of trademark protection.

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Status History

32 events

PUBLISHED FOR OPPOSITION

Aug 04, 2026

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Aug 04, 2026

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jul 29, 2026

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

ASSIGNED TO PETITION STAFF

Jul 07, 2026

ASSIGNED TO PETITION STAFF

PETITION TO DIRECTOR - CHANGE BASIS - GRANTED

Jul 07, 2026

PETITION TO DIRECTOR - CHANGE BASIS - GRANTED

JURISDICTION RESTORED TO EXAMINING ATTORNEY

Jul 07, 2026

JURISDICTION RESTORED TO EXAMINING ATTORNEY

NOTICE OF ALLOWANCE CANCELLED

Jul 07, 2026

NOTICE OF ALLOWANCE CANCELLED

CASE RETURNED TO EXAMINATION

Jul 07, 2026

CASE RETURNED TO EXAMINATION

TEAS PETITION TO AMEND BASIS RECEIVED

May 19, 2026

TEAS PETITION TO AMEND BASIS RECEIVED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Mar 04, 2026

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

SOU TEAS EXTENSION RECEIVED

Mar 03, 2026

SOU TEAS EXTENSION RECEIVED

SOU EXTENSION 1 FILED

Mar 03, 2026

SOU EXTENSION 1 FILED

SOU EXTENSION 1 GRANTED

Mar 03, 2026

SOU EXTENSION 1 GRANTED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Sep 09, 2025

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Aug 07, 2025

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 07, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

Aug 07, 2025

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 07, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Aug 07, 2025

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

PUBLISHED FOR OPPOSITION

Jul 15, 2025

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jul 15, 2025

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jul 09, 2025

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jun 11, 2025

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Jun 04, 2025

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jun 04, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Jun 04, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

NON-FINAL ACTION WRITTEN

Mar 09, 2025

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Mar 09, 2025

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Mar 09, 2025

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Feb 28, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jan 17, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Aug 26, 2024

NEW APPLICATION ENTERED

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