Who owns the SIGMA PI trademark?

The SIGMA PI trademark is owned by The Sigma Pi Fraternity, International Inc..

What class is the SIGMA PI trademark registered in?

The SIGMA PI trademark is registered in Class 035 (Advertising, business management & retail services).

What is the serial number for SIGMA PI?

The USPTO serial number for SIGMA PI is 88337660.

What is the registration number for SIGMA PI?

SIGMA PI is registered under USPTO registration number 5862416.

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Updated Nov 8, 2026·26 searches this week

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Section 8/9 declaration window

September 17, 2029

1043 days remaining

SIG

SIGMA PI

REGISTERED

Serial: 88337660
Reg: 5862416
Filed: Mar 13, 2019
Owner: The Sigma Pi Fraternity, International Inc.

Advertising; business management, organization and administration; office functions.

What to file next

Section 9 renewal, filed with a Section 8 declaration

When: Due between the ninth and tenth anniversary of registration, then before each tenth anniversary after that.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed renewal cancels the registration, and there is no revival route for it.

How Section 9 renewal 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 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Nov 30, 2018

First use in commerce: Nov 30, 2018

Advertising; business management, organization and administration; office functions.

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

Status History

15 events

REGISTERED - SEC. 8 (6-YR) ACCEPTED

Jan 30, 2026

Code 8.OK

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

Jan 30, 2026

Code NAS8

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jan 26, 2026

Code APRE

TEAS SECTION 8 RECEIVED

Sep 17, 2025

Code ES8R

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

Sep 17, 2024

Code REM1

REGISTERED-PRINCIPAL REGISTER

Sep 17, 2019

Code R.PR

PUBLISHED FOR OPPOSITION

Jul 02, 2019

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jul 02, 2019

Code NPUB

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jun 25, 2019

Code TCCA

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jun 12, 2019

Code NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

May 28, 2019

Code CNSA

ASSIGNED TO EXAMINER

May 22, 2019

Code DOCK

NOTICE OF DESIGN SEARCH CODE E-MAILED

Apr 02, 2019

Code MDSC

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Mar 30, 2019

Code NWOS

NEW APPLICATION ENTERED

Mar 16, 2019

Code NWAP

SIGMA PI

What to file next

Full Goods & Services

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