Who owns the SK trademark?

The SK trademark is owned by SK INC..

What class is the SK trademark registered in?

The SK trademark is registered in Class 041 (Education & entertainment services).

What is the serial number for SK?

The USPTO serial number for SK is 90576087.

What is the registration number for SK?

SK is registered under USPTO registration number 6750487.

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Updated Nov 7, 2026·42 searches this week

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Section 8 declaration window

June 07, 2028

577 days remaining

SK

REGISTERED

Serial: 90576087
Reg: 6750487
Filed: Mar 12, 2021
Owner: SK INC.

Education; providing of training; entertainment; sporting and cultural activities.

What to file next

Section 8 declaration of continued use

When: Due between the fifth and sixth anniversary of registration.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed Section 8 cancels the registration, and there is no revival route for it.

How the Section 8 deadline works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.

Full Goods & Services

Class 041Education & entertainment services

US codes: 100, 101, 107

Education; providing of training; entertainment; sporting and cultural activities.

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

Status History

32 events

TEAS VOLUNTARY AMENDMENT RECEIVED

Sep 16, 2026

Code PARI

CANCELLATION DENIED NO. 999999

Sep 09, 2026

Code CAND

CANCELLATION TERMINATED NO. 999999

Sep 09, 2026

Code CANT

TTAB RELEASE CASE TO TRADEMARKS

Sep 09, 2026

Code TMBN

CANCELLATION INSTITUTED NO. 999999

Feb 09, 2026

Code PETC

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

Dec 12, 2025

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 12, 2025

Code ARAA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 12, 2025

Code TCCA

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

Apr 22, 2025

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Apr 22, 2025

Code ARAA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Apr 22, 2025

Code TCCA

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Apr 22, 2025

Code EWAF

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

Feb 26, 2024

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Feb 26, 2024

Code ARAA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Feb 26, 2024

Code TCCA

REGISTERED-PRINCIPAL REGISTER

Jun 07, 2022

Code R.PR

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Jun 07, 2022

Code NRCC

PUBLISHED FOR OPPOSITION

Mar 22, 2022

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Mar 22, 2022

Code NPUB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Mar 02, 2022

Code NONP

LAW OFFICE PUBLICATION REVIEW COMPLETED

Feb 15, 2022

Code PREV

ASSIGNED TO LIE

Feb 14, 2022

Code ALIE

APPROVED FOR PUB - PRINCIPAL REGISTER

Feb 11, 2022

Code CNSA

SUSPENSION CHECKED - TO ATTORNEY FOR ACTION

Jan 10, 2022

Code RCCK

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Jul 07, 2021

Code ASGN

SUSPENSION LETTER WRITTEN

Jun 29, 2021

Code CNSL

LETTER OF SUSPENSION E-MAILED

Jun 29, 2021

Code GNSL

NOTIFICATION OF LETTER OF SUSPENSION E-MAILED

Jun 29, 2021

Code GNS3

ASSIGNED TO EXAMINER

Jun 21, 2021

Code DOCK

NOTICE OF DESIGN SEARCH CODE E-MAILED

Jun 15, 2021

Code MDSC

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jun 13, 2021

Code NWOS

NEW APPLICATION ENTERED

Mar 16, 2021

Code NWAP

SK

What to file next

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