(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from USPTO

LEF

Did you know this trademark is already registered in United States?

Before investing in name, identity, and promotion, validate collision risk and registration strategy to avoid wasting time and budget.

Active USPTO registrationType: WordOffice: United States

Quick snapshot

LEF

ST13

US500000076486275

Class

5, 16, 44

Filing

76486275

Registration

3273145

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

USPTO status

Active USPTO registration

Case type

Application and registration

Recorded events

51

Latest update

08/07/2026

Trademark type

Word

Nice classes

5, 16, 44

Filing date

01/31/2003

Registration date

08/07/2007

Expiration date

-

Complete case details

Structured fields from the responsible authority and the official record.

Status date

09/14/2017

Last transaction

08/07/2026

Responsible office

United States Patent and Trademark Office

Status code

800

Official register

Principal Register

First use anywhere

10/17/1980

First use in commerce

10/17/1990

Drawing code

1

Owner type

03

Owner location

FORT LAUDERDALE, FL, US

Examiner

MICHOS, JOHN E

Law office

L50

Current location

TMEG LAW OFFICE 105

Holders and representatives

Holders

BIOMEDICAL RESEARCH AND LONGEVITY SOCIETY, INC.
Life Extension Foundation, Inc.

Representatives

Susan H. Frohling Michael Best & Friedrich LLP

Technical classification

Nice Classes

Class 5Class 16Class 44

Vienna Codes

No Vienna codes available.

Goods and services

Class 5

Homeopathic dietary supplements

Class 16

Magazinesbrochures and leaflets related to health and nutrition

Class 44

Counseling in the field of nutritional counseling

Publications

History of USPTO decisions and trademark events.

51 publications found

REM2

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

08/07/2026

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

07/08/2026

ARAA

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

07/08/2026

REAP

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

07/08/2026

CHAN

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

07/08/2026

COAR

TEAS CHANGE OF OWNER ADDRESS RECEIVED

07/08/2026

ASGN

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

01/30/2019

NAS8

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

09/14/2017

RNL1

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

09/14/2017

9G8P

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

09/14/2017

8PRT

REGISTERED - PARTIAL SEC. 8 (10-YR) ACCEPTED

09/14/2017

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

09/14/2017

E89R

TEAS SECTION 8 & 9 RECEIVED

08/07/2017

REM2

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

08/07/2016

NA85

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

08/20/2013

C15A

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

08/20/2013

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

08/20/2013

815F

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

08/02/2013

E815

TEAS SECTION 8 & 15 RECEIVED

08/02/2013

NOSU

NOTICE OF SUIT

04/26/2011

NOSU

NOTICE OF SUIT

08/30/2010

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

10/30/2009

R.PR

REGISTERED-PRINCIPAL REGISTER

08/07/2007

PUBO

PUBLISHED FOR OPPOSITION

05/22/2007

NPUB

NOTICE OF PUBLICATION

05/02/2007

PREV

LAW OFFICE PUBLICATION REVIEW COMPLETED

03/28/2007

CNSA

APPROVED FOR PUB - PRINCIPAL REGISTER

03/28/2007

TEME

TEAS/EMAIL CORRESPONDENCE ENTERED

03/22/2007

ALIE

ASSIGNED TO LIE

03/21/2007

CRFA

CORRESPONDENCE RECEIVED IN LAW OFFICE

02/14/2007

TROA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

02/14/2007

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

02/14/2007

GNSL

LETTER OF SUSPENSION E-MAILED

08/10/2006

CNSL

SUSPENSION LETTER WRITTEN

08/10/2006

RCCK

SUSPENSION CHECKED - TO ATTORNEY FOR ACTION

08/03/2006

RCSC

REPORT COMPLETED SUSPENSION CHECK CASE STILL SUSPENDED

02/02/2006

RCCK

SUSPENSION CHECKED - TO ATTORNEY FOR ACTION

11/03/2005

RCSC

REPORT COMPLETED SUSPENSION CHECK CASE STILL SUSPENDED

05/02/2005

RCCK

SUSPENSION CHECKED - TO ATTORNEY FOR ACTION

01/10/2005

RCSC

REPORT COMPLETED SUSPENSION CHECK CASE STILL SUSPENDED

07/10/2004

CNSL

LETTER OF SUSPENSION MAILED

11/17/2003

CRFA

CORRESPONDENCE RECEIVED IN LAW OFFICE

08/11/2003

TROA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

08/11/2003

CFIT

CASE FILE IN TICRS

07/30/2003

TCCA

TEAS CHANGE OF CORRESPONDENCE RECEIVED

07/23/2003

EMRV

EMAIL RECEIVED

07/23/2003

CRFA

CORRESPONDENCE RECEIVED IN LAW OFFICE

07/22/2003

GNRT

NON-FINAL ACTION E-MAILED

07/22/2003

DOCK

ASSIGNED TO EXAMINER

07/20/2003

UNPR

UNRESPONSIVE/DUPLICATE PAPER RECEIVED

03/28/2003

PARI

TEAS VOLUNTARY AMENDMENT RECEIVED

03/28/2003

Continuous trademark protection

Get notified about every new filing that threatens LEF or your mark.

Professional 24-month watch service: we monitor USPTO for you and alert you in time to oppose — before conflicts become losses.