Who owns the LAMBDA LEGAL trademark?

The LAMBDA LEGAL trademark is owned by Lambda Legal Defense & Education Fund.

What class is the LAMBDA LEGAL trademark registered in?

The LAMBDA LEGAL trademark is registered in Class 045 (Legal, security & personal social services).

What is the serial number for LAMBDA LEGAL?

The USPTO serial number for LAMBDA LEGAL is 78920988.

What is the registration number for LAMBDA LEGAL?

LAMBDA LEGAL is registered under USPTO registration number 3251409.

Sealvo

Home Search: LAMBDA LEGALLAMBDA LEGAL #78920988

Back

Updated Sep 30, 2026·31 searches this week

View on USPTO TSDR Find similar marks

LAM

USPTO Trademark Record

REGISTERED

LAMBDA LEGAL

SN 78920988·Reg 3251409·Filed Jun 30, 2006

Owner Lambda Legal Defense & Education Fund

Legal services; security services for the physical protection of tangible property and individuals; dating services, online social networking services; funerary services; babysitting.

LAMBDA LEGAL (Serial No. 78920988), Registration No. 3251409, is a registered US trademark filed on Jun 30, 2006 by Lambda Legal Defense & Education Fund. This trademark covers Class 045 (Legal, security & personal social services).

renewal 20y period: June 14, 2027256 days remaining

Conflict Analysis

Full conflict analysis for LAMBDA LEGAL (SN 78920988) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

LAMBDA LEGAL (Reg. #3251409) is a registered US trademark that has been protecting its owner, Lambda Legal Defense & Education Fund, since 2006. The mark covers Class 045 (Legal, security & personal social services). Goods and services include Legal services; security services for the physical protection of tangible property and individuals; dating services, onl.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jun 30, 2006

SERIAL

78920988

REG#

3251409

REGISTERED

Jun 12, 2007

Filing Information

StatusREGISTERED

Filing DateJun 30, 2006

Serial Number78920988

Registration No.3251409

Registration DateJun 12, 2007

Status DateSep 30, 2016

Published for OppositionMar 27, 2007

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 045Legal, security & personal social services

US codes: 100, 101

First use anywhere: Nov 30, 1972

First use in commerce: Nov 30, 1972

Legal services; security services for the physical protection of tangible property and individuals; dating services, online social networking services; funerary services; babysitting.

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

33 events

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

Jun 12, 2026

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

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

Jan 30, 2023

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jan 30, 2023

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jan 30, 2023

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jan 30, 2023

TEAS CHANGE OF CORRESPONDENCE RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Sep 30, 2016

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Sep 30, 2016

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Sep 30, 2016

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

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

Sep 30, 2016

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

TEAS SECTION 8 & 9 RECEIVED

Jul 17, 2016

TEAS SECTION 8 & 9 RECEIVED

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

Jun 12, 2016

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

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

Jun 15, 2013

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jun 14, 2013

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Jun 14, 2013

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

TEAS SECTION 8 & 15 RECEIVED

May 31, 2013

TEAS SECTION 8 & 15 RECEIVED

REGISTERED-PRINCIPAL REGISTER

Jun 12, 2007

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Mar 27, 2007

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Mar 07, 2007

NOTICE OF PUBLICATION

ASSIGNED TO LIE

Feb 08, 2007

ASSIGNED TO LIE

LAW OFFICE PUBLICATION REVIEW COMPLETED

Feb 08, 2007

LAW OFFICE PUBLICATION REVIEW COMPLETED

PREVIOUS ALLOWANCE COUNT WITHDRAWN

Jan 05, 2007

PREVIOUS ALLOWANCE COUNT WITHDRAWN

EXAMINERS AMENDMENT -WRITTEN

Jan 05, 2007

EXAMINERS AMENDMENT -WRITTEN

EXAMINER'S AMENDMENT ENTERED

Jan 05, 2007

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 05, 2007

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINERS AMENDMENT MAILED

Jan 05, 2007

EXAMINERS AMENDMENT MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 04, 2007

APPROVED FOR PUB - PRINCIPAL REGISTER

TEAS/EMAIL CORRESPONDENCE ENTERED

Dec 28, 2006

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Dec 27, 2006

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Dec 27, 2006

CORRESPONDENCE RECEIVED IN LAW OFFICE

ASSIGNED TO EXAMINER

Dec 04, 2006

ASSIGNED TO EXAMINER

NON-FINAL ACTION WRITTEN

Dec 04, 2006

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION MAILED

Dec 04, 2006

NON-FINAL ACTION MAILED

NEW APPLICATION ENTERED

Jul 07, 2006

NEW APPLICATION ENTERED

Other Marks in Class 045 — Legal, security & personal social services

Recently filed and registered marks in the same international class.

LAM

LAMBDA LEGAL

97980115

Lambda Legal Defense and Education Fund, Inc.

REGISTERED

LAM

LAMBDA LEGAL

97979639

Lambda Legal Defense and Education Fund, Inc.

REGISTERED

STA

START LEGAL

99131906

STARTLEGAL, INC.

REGISTERED

MEL

MELETE LEGAL

99605625

Melete Legal, LLC

REGISTERED

Other Marks by Katrina M. Quicker

Additional USPTO filings handled by the same attorney of record.

GRI

GRIPGLAZE

99529925

REGISTERED

DUP

DUPE

99607133

REGISTERED

DUP

DUPEBIZ

99607164

REGISTERED

THE

THE EXTRA MILE

88830372

REGISTERED

LAMBDA LEGAL

Run a conflict check

Other Marks in Class 045 — Legal, security & personal social services

Other Marks by Katrina M. Quicker

Get pre-filing clearance

Search 15M+ trademarks

Resources

Company