What class is the C-EFM trademark registered in?

The C-EFM trademark is registered in Class B (Class NaN).

What is the serial number for C-EFM?

The USPTO serial number for C-EFM is 88476756.

What is the registration number for C-EFM?

C-EFM is registered under USPTO registration number 6127607.

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Home Search: C-EFMC-EFM #88476756

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Updated Sep 17, 2026·31 searches this week

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USPTO Trademark Record

REGISTERED

C-EFM

Q: Who owns the C-EFM trademark?

The C-EFM trademark is owned by NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES.

SN 88476756·Reg 6127607·Filed Jun 17, 2019

Owner NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES

C-EFM (Serial No. 88476756), Registration No. 6127607, is a registered US trademark filed on Jun 17, 2019 by NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES. This trademark covers Class B (Class NaN).

Section 8/9 declaration window: August 19, 2030

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C-EFM (Reg. #6127607) is a registered US trademark that has been protecting its owner, NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES, since 2019. The mark covers Class B (Class NaN). The mark faced 1 opposition proceeding during prosecution.

FILED

Jun 17, 2019

SERIAL

88476756

REG#

6127607

REGISTERED

Aug 18, 2020

Filing Information

StatusREGISTERED

Filing DateJun 17, 2019

Serial Number88476756

Registration No.6127607

Registration DateAug 18, 2020

Status DateApr 16, 2026

Published for OppositionJun 02, 2020

Filing Basis & Declarations

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

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 00BClass 0

US codes: B

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

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Status History

38 events

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

Apr 16, 2026

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

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

Apr 16, 2026

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

POST REGISTRATION ACTION MAILED - SEC. 8 & 15

Apr 15, 2026

POST REGISTRATION ACTION MAILED - SEC. 8 & 15

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

Apr 15, 2026

TEAS RESPONSE TO OFFICE ACTION-POST REG RECEIVED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jan 09, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jan 08, 2026

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 15 RECEIVED

Oct 02, 2025

TEAS SECTION 8 & 15 RECEIVED

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

Aug 21, 2025

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

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Aug 21, 2025

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Aug 21, 2025

TEAS CHANGE OF CORRESPONDENCE RECEIVED

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

Aug 18, 2025

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

REGISTERED-PRINCIPAL REGISTER

Aug 18, 2020

REGISTERED-PRINCIPAL REGISTER

PUBLISHED FOR OPPOSITION

Jun 02, 2020

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jun 02, 2020

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

May 13, 2020

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Apr 28, 2020

APPROVED FOR PUB - PRINCIPAL REGISTER

CORRESPONDENCE RECEIVED IN LAW OFFICE

Apr 08, 2020

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Apr 08, 2020

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Apr 07, 2020

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Apr 01, 2020

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Apr 01, 2020

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Apr 01, 2020

NOTIFICATION OF NON-FINAL ACTION E-MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Mar 09, 2020

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Mar 09, 2020

TEAS/EMAIL CORRESPONDENCE ENTERED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Mar 06, 2020

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Oct 22, 2019

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Oct 22, 2019

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 22, 2019

NOTIFICATION OF NON-FINAL ACTION E-MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 01, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 01, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

ASSIGNED TO LIE

Sep 30, 2019

ASSIGNED TO LIE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Sep 23, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NON-FINAL ACTION WRITTEN

Sep 10, 2019

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Sep 10, 2019

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Sep 10, 2019

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Sep 08, 2019

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Jun 27, 2019

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jun 20, 2019

NEW APPLICATION ENTERED

Other Marks by NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES

Additional USPTO filings from the same owner.

RNC

RNC-NIC

88476757

NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES

REGISTERED

RNC

RNC-MNN

88476744

NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES

REGISTERED

CNP

C-NPT

88476753

NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES

REGISTERED

RNC

RNC-OB

88476735

NATIONAL CERTIFICATION CORPORATION FOR THE OBSTETRIC, GYNECOLOGIC AND NEONATAL NURSING SPECIALTIES

REGISTERED

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