Who owns the L21 trademark?

The L21 trademark is owned by Leadership 21 Worldwide, Inc..

What class is the L21 trademark registered in?

The L21 trademark is registered in Class 035 (Advertising, business management & retail services).

What is the serial number for L21?

The USPTO serial number for L21 is 75354212.

What is the registration number for L21?

L21 is registered under USPTO registration number 2221389.

Sealvo

Home Search: L21L21 #75354212

Back

Updated Sep 28, 2026·13 searches this week

View on USPTO TSDR Find similar marks

L21

USPTO Trademark Record

ABANDONED

L21

SN 75354212·Reg 2221389·Filed Sep 09, 1997

Owner Leadership 21 Worldwide, Inc.

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

L21 (Serial No. 75354212), Registration No. 2221389, is a abandoned US trademark filed on Sep 09, 1997 by Leadership 21 Worldwide, Inc.. This trademark covers Class 035 (Advertising, business management & retail services).

Conflict Analysis

Full conflict analysis for L21 (SN 75354212) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

L21 (Reg. #2221389) is an abandoned US trademark that was filed in 1997 but has since been abandoned. The mark covers Class 035 (Advertising, business management & retail services). Goods and services include Advertising; business management, organization and administration; office functions.. The mark faced 1 opposition proceeding during prosecution.

FILED

Sep 09, 1997

SERIAL

75354212

REG#

2221389

REGISTERED

Feb 02, 1999

Filing Information

StatusABANDONED

Filing DateSep 09, 1997

Serial Number75354212

Registration No.2221389

Registration DateFeb 02, 1999

Status DateSep 05, 2009

Published for OppositionNov 10, 1998

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlySection 8 AcceptedSection 15 Acknowledged

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

First use anywhere: Feb 28, 1997

First use in commerce: Feb 28, 1997

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

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

Run a conflict check

Search by serial number, mark name, or logo. See conflicting marks ranked by risk with clear explanations of what contributed.

Run conflict check

Status History

13 events

CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9

Sep 05, 2009

CANCELLED SEC. 8 (10-YR)/EXPIRED SECTION 9

CASE FILE IN TICRS

Jul 23, 2007

CASE FILE IN TICRS

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

Feb 11, 2005

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

TEAS SECTION 8 & 15 RECEIVED

Jan 07, 2005

TEAS SECTION 8 & 15 RECEIVED

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

Jan 07, 2005

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

Jan 07, 2005

REGISTERED - SEC. 8 (6-YR) & SEC. 15 FILED

PAPER RECEIVED

Sep 09, 2002

PAPER RECEIVED

REGISTERED-PRINCIPAL REGISTER

Feb 02, 1999

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Nov 10, 1998

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Oct 09, 1998

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Jul 24, 1998

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINER'S AMENDMENT MAILED

Jul 14, 1998

EXAMINER'S AMENDMENT MAILED

ASSIGNED TO EXAMINER

Jun 02, 1998

ASSIGNED TO EXAMINER

Other Marks by Leadership 21 Worldwide, Inc.

Additional USPTO filings from the same owner.

LEA

LEADERSHIP 21

77569686

LEADERSHIP 21 WORLDWIDE, INC.

ABANDONED

L21

76413252

Leadership 21 Worldwide, Inc.

ABANDONED

EXP

EXPLORING CORPORATE DNA

74596720

Leadership 21 Worldwide, Inc.

ABANDONED

EXP

EXPLORING CORPORATE DNA

75976297

Leadership 21 Worldwide, Inc.

ABANDONED

Other Marks in Class 035 — Advertising, business management & retail services

Recently filed and registered marks in the same international class.

L21

76413252

Leadership 21 Worldwide, Inc.

ABANDONED

Other Marks by GENE A. TABACHNICK

Additional USPTO filings handled by the same attorney of record.

KIS

KISS MY FEET

76099640

ABANDONED

PER

PERUNA

85437747

ABANDONED

GIV

GIVE LIFE TO HISTORY

78374716

ABANDONED

TAK

TAKE CHARGE OF YOUR LIFE

76566029

ABANDONED

L21

Run a conflict check

Other Marks by Leadership 21 Worldwide, Inc.

Other Marks in Class 035 — Advertising, business management & retail services

Other Marks by GENE A. TABACHNICK

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company