Who owns the MASTERFLEX trademark?

The MASTERFLEX trademark is owned by COLE-PARMER INSTRUMENT COMPANY LLC.

What class is the MASTERFLEX trademark registered in?

The MASTERFLEX trademark is registered in Class 017 (Rubber, plastics & insulating materials).

What is the serial number for MASTERFLEX?

The USPTO serial number for MASTERFLEX is 73544135.

What is the registration number for MASTERFLEX?

MASTERFLEX is registered under USPTO registration number 1398521.

Sealvo

Home Search: MASTERFLEXMASTERFLEX #73544135

Back

Updated Oct 29, 2026·27 searches this week

View on USPTO TSDR Find similar marks

MAS

USPTO Trademark Record

REGISTERED

MASTERFLEX

SN 73544135·Reg 1398521·Filed Jun 20, 1985

Owner COLE-PARMER INSTRUMENT COMPANY LLC

Unprocessed and semi-processed rubber, gutta-percha, gum, asbestos, mica and substitutes for all these materials; plastics and resins in extruded form for use in manufacture; packing, stopping and insulating materials; flexible pipes, tubes and hoses, not of metal.

MASTERFLEX (Serial No. 73544135), Registration No. 1398521, is a registered US trademark filed on Jun 20, 1985 by COLE-PARMER INSTRUMENT COMPANY LLC. This trademark covers Class 017 (Rubber, plastics & insulating materials).

renewal grace 40y period: December 24, 202656 days remaining

Mark Intelligence

MASTERFLEX (Reg. #1398521) is a registered US trademark that has been protecting its owner, COLE-PARMER INSTRUMENT COMPANY LLC, since 1985. The mark covers Class 017 (Rubber, plastics & insulating materials). Goods and services include Unprocessed and semi-processed rubber, gutta-percha, gum, asbestos, mica and substitutes for all these materials; plasti.... The mark faced 1 opposition proceeding during prosecution.

FILED

Jun 20, 1985

SERIAL

73544135

REG#

1398521

REGISTERED

Jun 24, 1986

Filing Information

StatusREGISTERED

Filing DateJun 20, 1985

Serial Number73544135

Registration No.1398521

Registration DateJun 24, 1986

Status DateMay 26, 2026

Published for OppositionApr 01, 1986

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 017Rubber, plastics & insulating materials

US codes: 013

First use anywhere: Oct 01, 1979

First use in commerce: Oct 01, 1979

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

46 events

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

May 26, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

May 26, 2026

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

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

May 26, 2026

REGISTERED AND RENEWED (THIRD RENEWAL - 10 YRS)

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

May 26, 2026

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

TEAS SECTION 8 & 9 RECEIVED

Mar 20, 2026

TEAS SECTION 8 & 9 RECEIVED

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

Jun 24, 2025

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

TEAS CHANGE OF OWNER ADDRESS RECEIVED

Jul 11, 2023

TEAS CHANGE OF OWNER ADDRESS RECEIVED

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

Jul 11, 2023

APPLICANT/CORRESPONDENCE CHANGES (NON-RESPONSIVE) ENTERED

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

Jul 11, 2023

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Jul 11, 2023

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Jul 11, 2023

TEAS CHANGE OF CORRESPONDENCE RECEIVED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Jul 11, 2023

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jun 23, 2022

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jun 23, 2022

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Mar 23, 2022

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jan 12, 2022

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Nov 10, 2021

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Dec 11, 2019

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Nov 13, 2019

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

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

Aug 17, 2018

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 17, 2018

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Apr 05, 2017

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Mar 29, 2017

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

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

Jul 24, 2016

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jul 23, 2016

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

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

Jul 23, 2016

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

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

Jul 23, 2016

REGISTERED AND RENEWED (SECOND RENEWAL - 10 YRS)

TEAS SECTION 8 & 9 RECEIVED

May 04, 2016

TEAS SECTION 8 & 9 RECEIVED

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Sep 24, 2014

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Aug 27, 2014

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

CASE FILE IN TICRS

Jun 20, 2008

CASE FILE IN TICRS

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

Aug 10, 2006

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

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

Aug 10, 2006

REGISTERED AND RENEWED (FIRST RENEWAL - 10 YRS)

ASSIGNED TO PARALEGAL

Aug 01, 2006

ASSIGNED TO PARALEGAL

TEAS SECTION 8 & 9 RECEIVED

May 19, 2006

TEAS SECTION 8 & 9 RECEIVED

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

May 19, 2006

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

PAPER RECEIVED

Aug 02, 2004

PAPER RECEIVED

Dec 11, 2003

PAPER RECEIVED

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

Sep 02, 1992

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

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

May 11, 1992

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

REGISTERED-PRINCIPAL REGISTER

Jun 24, 1986

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Apr 01, 1986

PUBLISHED FOR OPPOSITION

NOTICE OF PUBLICATION

Mar 04, 1986

NOTICE OF PUBLICATION

APPROVED FOR PUB - PRINCIPAL REGISTER

Jan 25, 1986

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINERS AMENDMENT MAILED

Jan 21, 1986

EXAMINERS AMENDMENT MAILED

NON-FINAL ACTION MAILED

Sep 25, 1985

NON-FINAL ACTION MAILED

Other Marks by COLE-PARMER INSTRUMENT COMPANY LLC

Additional USPTO filings from the same owner.

COL

COLE-PARMER

73565043

Cole-Parmer Instrument Company LLC

REGISTERED

DIG

DIGI-SENSE

88784914

Cole-Parmer Instrument Company LLC

REGISTERED

DIG

DIGI-SENSE

73084459

COLE-PARMER INSTRUMENT COMPANY LLC

REGISTERED

STA

STABLETEMP

86301634

Cole-Parmer Instrument Company LLC

REGISTERED

Other Marks in Class 017 — Rubber, plastics & insulating materials

Recently filed and registered marks in the same international class.

MAS

MASTERFLEX

88377687

Masterflex, LLC

REGISTERED

MAS

MASTERFLEX

88377670

MASTERFLEX, LLC

REGISTERED

MAS

MASTERFLEX

99402321

Masterflex, LLC

PENDING

MAS

MASTERFLEX

75691575

GARLOCK SEALING TECHNOLOGIES LLC

ABANDONED

Other Marks by Phillip L. Kim

Additional USPTO filings handled by the same attorney of record.

TOT

TOTO

78580480

REGISTERED

UNI

UNIQLO

79186907

REGISTERED

SPH

SPHERE

99811881

REGISTERED

MIZ

MIZUHO

79278225

REGISTERED

MASTERFLEX

Run a conflict check

Other Marks by COLE-PARMER INSTRUMENT COMPANY LLC

Other Marks in Class 017 — Rubber, plastics & insulating materials

Other Marks by Phillip L. Kim

Get pre-filing clearance

Search 14M+ trademarks

Industries

USPTO Deadlines

Compare

Resources

Company