Who owns the SIGMA DELTA TAU trademark?

The SIGMA DELTA TAU trademark is owned by SIGMA DELTA TAU.

What class is the SIGMA DELTA TAU trademark registered in?

The SIGMA DELTA TAU trademark is registered in Class 200 (Class 200).

What is the serial number for SIGMA DELTA TAU?

The USPTO serial number for SIGMA DELTA TAU is 73018512.

What is the registration number for SIGMA DELTA TAU?

SIGMA DELTA TAU is registered under USPTO registration number 1020820.

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SIG

USPTO Trademark Record

REGISTERED

SIGMA DELTA TAU

SN 73018512·Reg 1020820·Filed Apr 11, 1974

Owner SIGMA DELTA TAU

SIGMA DELTA TAU (Serial No. 73018512), Registration No. 1020820, is a registered US trademark filed on Apr 11, 1974 by SIGMA DELTA TAU. This trademark covers Class 200 (Class 200).

Section 8/9 declaration window: September 17, 2035

Mark Intelligence

SIGMA DELTA TAU (Reg. #1020820) is a registered US trademark that has been protecting its owner, SIGMA DELTA TAU, since 1974. The mark covers Class 200 (Class 200).

FILED

Apr 11, 1974

SERIAL

73018512

REG#

1020820

REGISTERED

Sep 16, 1975

Filing Information

StatusREGISTERED

Filing DateApr 11, 1974

Serial Number73018512

Registration No.1020820

Registration DateSep 16, 1975

Status DateAug 01, 2025

Next RenewalSeptember 17, 2035

Filing Basis & Declarations

Standard Characters ClaimedFiled 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: Mar 25, 1917

First use in commerce: Jun 20, 1920

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

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Status History

24 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Aug 01, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Aug 01, 2025

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

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

Aug 01, 2025

REGISTERED AND RENEWED (FOURTH RENEWAL - 10 YRS)

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

Aug 01, 2025

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

TEAS SECTION 8 & 9 RECEIVED

Mar 13, 2025

TEAS SECTION 8 & 9 RECEIVED

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

Sep 16, 2024

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

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

Jul 11, 2021

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 11, 2021

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 11, 2021

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Oct 10, 2014

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

Oct 10, 2014

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

Oct 10, 2014

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

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

Oct 09, 2014

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 08, 2014

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

Oct 08, 2014

POST REGISTRATION ACTION MAILED - SEC. 8 & 9

TEAS SECTION 8 & 9 RECEIVED

Sep 29, 2014

TEAS SECTION 8 & 9 RECEIVED

CASE FILE IN TICRS

Oct 30, 2007

CASE FILE IN TICRS

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

Dec 01, 2005

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Dec 01, 2005

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

TEAS SECTION 8 & 9 RECEIVED

Sep 01, 2005

TEAS SECTION 8 & 9 RECEIVED

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

Sep 01, 2005

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Feb 14, 1996

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

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

Dec 14, 1995

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

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

Jun 29, 1981

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

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