Who owns the DUPLEX PLUG & PLAY trademark?

The DUPLEX PLUG & PLAY trademark is owned by ClearSign Combustion Corporation.

What class is the DUPLEX PLUG & PLAY trademark registered in?

The DUPLEX PLUG & PLAY trademark is registered in Class 011 (Lighting, heating, cooling & sanitary apparatus).

What is the serial number for DUPLEX PLUG & PLAY?

The USPTO serial number for DUPLEX PLUG & PLAY is 87331916.

What is the registration number for DUPLEX PLUG & PLAY?

DUPLEX PLUG & PLAY is registered under USPTO registration number 5891669.

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USPTO Trademark Record

REGISTERED

DUPLEX PLUG & PLAY

SN 87331916·Reg 5891669·Filed Feb 10, 2017

Owner ClearSign Combustion Corporation

Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

DUPLEX PLUG & PLAY (Serial No. 87331916), Registration No. 5891669, is a registered US trademark filed on Feb 10, 2017 by ClearSign Combustion Corporation. This trademark covers Class 011 (Lighting, heating, cooling & sanitary apparatus).

Section 8/9 declaration window: October 22, 2029

Mark Intelligence

DUPLEX PLUG & PLAY (Reg. #5891669) is a registered US trademark that has been protecting its owner, ClearSign Combustion Corporation, since 2017. The mark covers Class 011 (Lighting, heating, cooling & sanitary apparatus). Goods and services include Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply.... The mark faced 1 opposition proceeding during prosecution.

FILED

Feb 10, 2017

SERIAL

87331916

REG#

5891669

REGISTERED

Oct 22, 2019

Filing Information

StatusREGISTERED

Filing DateFeb 10, 2017

Serial Number87331916

Registration No.5891669

Registration DateOct 22, 2019

Status DateNov 25, 2025

Published for OppositionJul 17, 2018

Filing Basis & Declarations

Standard Characters ClaimedUse Application CurrentlySection 8 AcceptedSection 15 AcknowledgedTrademark

International Filings

Madrid Protocol1 filings

This mark has 1 Madrid Protocol filing on record with the USPTO.

1377595

480Aug 07, 2017

Source: USPTO Madrid International Filing Requests

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 011Lighting, heating, cooling & sanitary apparatus

US codes: 013, 021, 023, 031, 034

First use anywhere: Jun 13, 2019

First use in commerce: Jun 13, 2019

Apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes.

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

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Status History

41 events

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

Nov 25, 2025

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

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

Nov 25, 2025

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

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Nov 25, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 & 15 RECEIVED

Aug 08, 2025

TEAS SECTION 8 & 15 RECEIVED

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

Oct 22, 2024

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

REVIEW OF CORRESPONDENCE COMPLETE - POWER OF ATTORNEY ENTERED

Dec 05, 2019

REVIEW OF CORRESPONDENCE COMPLETE - POWER OF ATTORNEY ENTERED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Dec 04, 2019

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

REGISTERED-PRINCIPAL REGISTER

Oct 22, 2019

REGISTERED-PRINCIPAL REGISTER

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

Sep 20, 2019

NOTICE OF ACCEPTANCE OF STATEMENT OF USE E-MAILED

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

Sep 19, 2019

ALLOWED PRINCIPAL REGISTER - SOU ACCEPTED

STATEMENT OF USE PROCESSING COMPLETE

Aug 21, 2019

STATEMENT OF USE PROCESSING COMPLETE

CASE ASSIGNED TO INTENT TO USE PARALEGAL

Aug 21, 2019

CASE ASSIGNED TO INTENT TO USE PARALEGAL

USE AMENDMENT FILED

Jul 25, 2019

USE AMENDMENT FILED

TEAS STATEMENT OF USE RECEIVED

Jul 25, 2019

TEAS STATEMENT OF USE RECEIVED

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

Mar 08, 2019

NOTICE OF APPROVAL OF EXTENSION REQUEST E-MAILED

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Mar 06, 2019

TEAS CHANGE OF CORRESPONDENCE RECEIVED

SOU EXTENSION 1 GRANTED

Mar 06, 2019

SOU EXTENSION 1 GRANTED

SOU EXTENSION 1 FILED

Mar 06, 2019

SOU EXTENSION 1 FILED

SOU TEAS EXTENSION RECEIVED

Mar 06, 2019

SOU TEAS EXTENSION RECEIVED

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Sep 11, 2018

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jul 17, 2018

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

PUBLISHED FOR OPPOSITION

Jul 17, 2018

PUBLISHED FOR OPPOSITION

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jun 27, 2018

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINER'S AMENDMENT ENTERED

Jun 11, 2018

EXAMINER'S AMENDMENT ENTERED

EXAMINERS AMENDMENT -WRITTEN

Jun 11, 2018

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Jun 11, 2018

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Jun 11, 2018

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Jun 11, 2018

APPROVED FOR PUB - PRINCIPAL REGISTER

NOTIFICATION OF FINAL REFUSAL EMAILED

Dec 09, 2017

NOTIFICATION OF FINAL REFUSAL EMAILED

FINAL REFUSAL WRITTEN

Dec 09, 2017

FINAL REFUSAL WRITTEN

FINAL REFUSAL E-MAILED

Dec 09, 2017

FINAL REFUSAL E-MAILED

TEAS/EMAIL CORRESPONDENCE ENTERED

Nov 14, 2017

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Nov 14, 2017

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Nov 14, 2017

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

May 14, 2017

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NON-FINAL ACTION E-MAILED

May 14, 2017

NON-FINAL ACTION E-MAILED

NON-FINAL ACTION WRITTEN

May 14, 2017

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

May 06, 2017

ASSIGNED TO EXAMINER

NOTICE OF PSEUDO MARK E-MAILED

Feb 17, 2017

NOTICE OF PSEUDO MARK E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Feb 16, 2017

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Feb 14, 2017

NEW APPLICATION ENTERED

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