LIVE

Serial Number

87599418

Owner

SLSG LIMITED LLC

Attorney

Karen K. Won

First Use Date

Dec 9, 2019

Filing Date

Sep 7, 2017

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SELLAS LIFE SCIENCES GROUP Trademark

Serial Number: 87599418 • Registration: 5991604

SELLAS LIFE SCIENCES GROUP is a trademark filed by SLSG LIMITED LLC on September 7, 2017. The trademark is classified under Class 5 (Pharmaceuticals), Class 42 (Computer & Scientific). The application is currently registered and active.

Trademark Classes

Class 5 - Pharmaceuticals

Pharmaceutical and veterinary preparations; sanitary preparations for medical purposes

Class 42 - Computer & Scientific

Scientific and technological services; industrial analysis and research services

Owner Contact Info

SLSG LIMITED LLC (5 trademarks)

1675 SOUTH STATE ST.
DOVER, DE 19901

Entity Type: 16

Sellas Life Sciences Group Ltd.

O'Hara House
Hamilton HM11 , BM

Entity Type: 11

Legal Representation

Attorney of Record

Karen K. Won

306 trademarks filed View all →

Correspondence Address

Karen K. Won MINTZ, LEVIN, COHN, FERRIS, GLOVSKY AND POPEO, P.C

One Financial Center

Boston, MA 02111

United States

Trademark Details

Filing Date

September 7, 2017

Registration Date

February 18, 2020

First Use Anywhere

December 9, 2019

First Use in Commerce

December 9, 2019

Published for Opposition

February 6, 2018

Goods & Services

Scientific research and development for medical, pharmaceutical, and biopharmaceutical purposes; consulting in the field of medical, pharmaceutical, and biopharmaceutical research and product development; conducting of clinical trials, for others and development of pharmaceutical products, biopharmaceutical products, and other therapeutic products; development of cancer vaccines and treatment products for cancer

Pharmaceutical and biopharmaceutical preparations for the treatment of cancer

Filing History

NOTICE OF ACCEPTANCE OF SEC. 8 & 15 - E-MAILED

May 7, 2026 NA85

REGISTERED - SEC. 8 (6-YR) ACCEPTED & SEC. 15 ACK.

May 7, 2026 C15A

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

May 7, 2026 APRE

TEAS SECTION 8 & 15 RECEIVED

Feb 17, 2026 E815

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Dec 31, 2025 TCCA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 31, 2025 ARAA

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

Dec 31, 2025 REAP

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Dec 31, 2025 CHAN

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Dec 31, 2025 COAR

COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED

Feb 18, 2025 REM1

REGISTERED-PRINCIPAL REGISTER

Feb 18, 2020 R.PR

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Jan 14, 2020 SUNA

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Jan 13, 2020 CNPR

STATEMENT OF USE PROCESSING COMPLETE

Dec 30, 2019 SUPC

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Dec 28, 2019 AITU

USE AMENDMENT FILED

Dec 18, 2019 IUAF

TEAS STATEMENT OF USE RECEIVED

Dec 18, 2019 EISU

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Dec 12, 2019 ARAA

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

Dec 12, 2019 REAP

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Oct 2, 2019 EXRA

SOU EXTENSION 3 GRANTED

Sep 30, 2019 EX3G

SOU EXTENSION 3 FILED

Sep 30, 2019 EXT3

SOU TEAS EXTENSION RECEIVED

Sep 30, 2019 EEXT

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Jul 10, 2019 ASGN

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Mar 30, 2019 EXRA

SOU EXTENSION 2 GRANTED

Mar 28, 2019 EX2G

SOU EXTENSION 2 FILED

Mar 28, 2019 EXT2

SOU TEAS EXTENSION RECEIVED

Mar 28, 2019 EEXT

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Oct 3, 2018 EXRA

SOU EXTENSION 1 GRANTED

Oct 1, 2018 EX1G

SOU EXTENSION 1 FILED

Oct 1, 2018 EXT1

SOU TEAS EXTENSION RECEIVED

Oct 1, 2018 EEXT

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Apr 3, 2018 NOAM

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Feb 6, 2018 NPUB

PUBLISHED FOR OPPOSITION

Feb 6, 2018 PUBO

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jan 17, 2018 NONP

ASSIGNED TO LIE

Jan 1, 2018 ALIE

APPROVED FOR PUB - PRINCIPAL REGISTER

Dec 14, 2017 CNSA

EXAMINER'S AMENDMENT ENTERED

Dec 14, 2017 XAEC

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Dec 14, 2017 GNEN

EXAMINERS AMENDMENT E-MAILED

Dec 14, 2017 GNEA

EXAMINERS AMENDMENT -WRITTEN

Dec 14, 2017 CNEA

ASSIGNED TO EXAMINER

Dec 12, 2017 DOCK

NOTICE OF DESIGN SEARCH CODE E-MAILED

Sep 14, 2017 MDSC

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Sep 13, 2017 NWOS

NEW APPLICATION ENTERED

Sep 11, 2017 NWAP

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