Who owns the PARTICLEX trademark?

The PARTICLEX trademark is owned by PARTICLE ACCELERATOR LIMITED.

What is the serial number for PARTICLEX?

The USPTO serial number for PARTICLEX is 87829016.

What is the registration number for PARTICLEX?

PARTICLEX is registered under USPTO registration number 5640924.

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Updated Oct 9, 2026·33 searches this week

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PAR

USPTO Trademark Record

REGISTERED

PARTICLEX

Q: What class is the PARTICLEX trademark registered in?

The PARTICLEX trademark is registered in Class 036 (Insurance, financial & real estate services), Class 035 (Advertising, business management & retail services).

SN 87829016·Reg 5640924·Filed Mar 10, 2018

Owner PARTICLE ACCELERATOR LIMITED

Financial, monetary and banking services; insurance services; real estate services.; Advertising; business management, organization and administration; office functions.

PARTICLEX (Serial No. 87829016), Registration No. 5640924, is a registered US trademark filed on Mar 10, 2018 by PARTICLE ACCELERATOR LIMITED. This trademark covers Class 036 (Insurance, financial & real estate services), Class 035 (Advertising, business management & retail services).

Section 8/9 declaration window: January 01, 2029

Mark Intelligence

PARTICLEX (Reg. #5640924) is a registered US trademark that has been protecting its owner, PARTICLE ACCELERATOR LIMITED, since 2018. The mark covers Class 036 (Insurance, financial & real estate services) and Class 035 (Advertising, business management & retail services) respectively. Goods and services include Financial, monetary and banking services; insurance services; real estate services.; Advertising; business management, o.... The mark faced 1 opposition proceeding during prosecution.

FILED

Mar 10, 2018

SERIAL

87829016

REG#

5640924

REGISTERED

Jan 01, 2019

Filing Information

StatusREGISTERED

Filing DateMar 10, 2018

Serial Number87829016

Registration No.5640924

Registration DateJan 01, 2019

Status DateOct 22, 2025

Published for OppositionOct 16, 2018

Filing Basis & Declarations

Section 8 Accepted

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 036Insurance, financial & real estate services

US codes: 100, 101, 102

Financial, monetary and banking services; insurance services; real estate services.

Class 035Advertising, business management & retail services

US codes: 100, 101, 102

Advertising; business management, organization and administration; office functions.

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

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Status History

22 events

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

Oct 22, 2025

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

REGISTERED - SEC. 8 (6-YR) ACCEPTED

Oct 22, 2025

REGISTERED - SEC. 8 (6-YR) ACCEPTED

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Oct 20, 2025

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

TEAS SECTION 8 RECEIVED

Jun 27, 2025

TEAS SECTION 8 RECEIVED

WITHDRAWAL OF ATTORNEY GRANTED

May 04, 2022

WITHDRAWAL OF ATTORNEY GRANTED

TEAS WITHDRAWAL OF ATTORNEY RECEIVED

May 04, 2022

TEAS WITHDRAWAL OF ATTORNEY RECEIVED

REGISTERED-PRINCIPAL REGISTER

Jan 01, 2019

REGISTERED-PRINCIPAL REGISTER

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Oct 16, 2018

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

PUBLISHED FOR OPPOSITION

Oct 16, 2018

PUBLISHED FOR OPPOSITION

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Sep 26, 2018

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Sep 11, 2018

APPROVED FOR PUB - PRINCIPAL REGISTER

CORRESPONDENCE RECEIVED IN LAW OFFICE

Sep 10, 2018

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Sep 10, 2018

TEAS/EMAIL CORRESPONDENCE ENTERED

ASSIGNED TO LIE

Sep 05, 2018

ASSIGNED TO LIE

TEAS RESPONSE TO SUSPENSION INQUIRY RECEIVED

Aug 20, 2018

TEAS RESPONSE TO SUSPENSION INQUIRY RECEIVED

SUSPENSION LETTER WRITTEN

Jun 25, 2018

SUSPENSION LETTER WRITTEN

NOTIFICATION OF LETTER OF SUSPENSION E-MAILED

Jun 25, 2018

NOTIFICATION OF LETTER OF SUSPENSION E-MAILED

LETTER OF SUSPENSION E-MAILED

Jun 25, 2018

LETTER OF SUSPENSION E-MAILED

ASSIGNED TO EXAMINER

Jun 21, 2018

ASSIGNED TO EXAMINER

NOTICE OF DESIGN SEARCH CODE E-MAILED

Mar 17, 2018

NOTICE OF DESIGN SEARCH CODE E-MAILED

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Mar 16, 2018

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Mar 14, 2018

NEW APPLICATION ENTERED

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