Who owns the THETA XI trademark?

The THETA XI trademark is owned by THETA XI FRATERNITY.

What class is the THETA XI trademark registered in?

The THETA XI trademark is registered in Class 200 (Class 200).

What is the serial number for THETA XI?

The USPTO serial number for THETA XI is 71693707.

What is the registration number for THETA XI?

THETA XI is registered under USPTO registration number 636956.

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Home Search: THETA XITHETA XI #71693707

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Updated Sep 23, 2026·13 searches this week

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THE

USPTO Trademark Record

REGISTERED

THETA XI

SN 71693707·Reg 636956·Filed Aug 25, 1955

Owner THETA XI FRATERNITY

THETA XI (Serial No. 71693707), Registration No. 636956, is a registered US trademark filed on Aug 25, 1955 by THETA XI FRATERNITY. This trademark covers Class 200 (Class 200).

renewal 70y period: November 06, 202643 days remaining

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THETA XI (Reg. #636956) is a registered US trademark that has been protecting its owner, THETA XI FRATERNITY, since 1955. The mark covers Class 200 (Class 200).

FILED

Aug 25, 1955

SERIAL

71693707

REG#

636956

REGISTERED

Nov 06, 1956

Filing Information

StatusREGISTERED

Filing DateAug 25, 1955

Serial Number71693707

Registration No.636956

Registration DateNov 06, 1956

Status DateFeb 12, 2026

Mark TypeStylized characters

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 200Class 200

US codes: 200

First use anywhere: Apr 29, 1964

First use in commerce: Apr 29, 1964

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

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Status History

25 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Feb 12, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Feb 12, 2026

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (FIFTH RENEWAL - 10 YRS)

Feb 12, 2026

REGISTERED AND RENEWED (FIFTH RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Feb 12, 2026

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Feb 08, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

Nov 06, 2025

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

TEAS SECTION 8 & 9 RECEIVED

Nov 06, 2025

TEAS SECTION 8 & 9 RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Feb 01, 2016

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Feb 01, 2016

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

Feb 01, 2016

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

Feb 01, 2016

NOTICE OF ACCEPTANCE OF SEC. 8 & 9 - E-MAILED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jan 21, 2016

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

Nov 06, 2015

COURTESY REMINDER - SEC. 8 (10-YR)/SEC. 9 E-MAILED

TEAS SECTION 8 & 9 RECEIVED

Nov 06, 2015

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Aug 13, 2008

CASE FILE IN TICRS

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

Jan 04, 2007

REGISTERED - SEC. 8 (10-YR) ACCEPTED/SEC. 9 GRANTED

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Jan 04, 2007

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

ASSIGNED TO PARALEGAL

Dec 29, 2006

ASSIGNED TO PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

Oct 27, 2006

TEAS SECTION 8 & 9 RECEIVED

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

Oct 27, 2006

REGISTERED - COMBINED SECTION 8 (10-YR) & SEC. 9 FILED

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

Oct 26, 2006

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Oct 26, 2006

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Apr 23, 1997

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8

Feb 04, 1997

REGISTERED - SEC. 9 FILED/CHECK RECORD FOR SEC. 8

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

Nov 06, 1976

REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

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