Who owns the CAIJIN trademark?

The CAIJIN trademark is owned by Shenzhen Maidehao Technology Co., Ltd..

What class is the CAIJIN trademark registered in?

The CAIJIN trademark is registered in Class 009 (Electronics, software & scientific instruments).

What is the serial number for CAIJIN?

The USPTO serial number for CAIJIN is 99321719.

What is the registration number for CAIJIN?

CAIJIN is registered under USPTO registration number 8167709.

CAI

CAIJIN

REGISTERED

Serial: 99321719
Reg: 8167709
Filed: Aug 05, 2025
Owner: Shenzhen Maidehao Technology Co., Ltd.

Scientific, research, navigation, surveying, photographic, cinematographic, audiovisual, optical, weighing, measuring, signalling, detecting, testing, inspecting, life-saving and teaching apparatus and instruments; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; apparatus and instruments for recording, transmitting, reproducing or processing sound, images or data; recorded and downloadable multimedia files, computer software, blank digital or analogue recording and storage media; mechanisms for coin-operated apparatus; cash registers, calculating devices; computers and computer peripheral devices; diving suits, divers' masks, ear plugs for divers, nose clips for divers, gloves for divers, breathing apparatus for underwater swimming; fire-extinguishing apparatus.

What to file next

Section 8 declaration of continued use

When: Due between the fifth and sixth anniversary of registration.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed Section 8 cancels the registration, and there is no revival route for it.

How the Section 8 deadline works

General information about USPTO practice, not legal advice. The register is the authority, and a filing that has not yet posted can change what is owed.

Full Goods & Services

Class 009Electronics, software & scientific instruments

US codes: 021, 023, 026, 036, 038

First use anywhere: Jul 12, 2025

First use in commerce: Jul 12, 2025

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

Filing Basis & Declarations

Filed as Use ApplicationUse Application CurrentlyTrademark

Status History

11 events

REGISTERED-PRINCIPAL REGISTER

Mar 10, 2026

Code R.PR

NOTICE OF REGISTRATION CONFIRMATION EMAILED

Mar 10, 2026

Code NRCC

PUBLISHED FOR OPPOSITION

Jan 20, 2026

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Jan 20, 2026

Code NPUB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Jan 14, 2026

Code NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

Dec 19, 2025

Code CNSA

ASSIGNED TO EXAMINER

Dec 18, 2025

Code DOCK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Dec 14, 2025

Code NWOS

NOTICE OF DESIGN SEARCH CODE E-MAILED

Dec 14, 2025

Code MDSC

NEW APPLICATION ENTERED

Aug 05, 2025

Code NWAP

APPLICATION FILING RECEIPT MAILED

Aug 05, 2025

Code MAFR

Other Marks by Shenzhen Maidehao Technology Co., Ltd.

Additional USPTO filings from the same owner.

DUJ

DUJUIKE

99578508

Shenzhen Maidehao Technology Co., Ltd.

REGISTERED

DUJ

DUJUIKE

88655963

SHENZHEN MAIDEHAO TECHNOLOGY CO., LTD.

REGISTERED

HSO

HSOWITUR

90117464

Shenzhen Maidehao Technology Co., Ltd.

OTHERS

Other Marks by Xia Liu

Additional USPTO filings handled by the same attorney of record.

KSC

KSCRAFT

99735841

REGISTERED

LSK

LSKDNRUFH

99743081

REGISTERED

ZZO

Z ZONEJASON

99724139

REGISTERED

ZZO

Z ZONEJASON

99724249

REGISTERED

CAIJIN

What to file next

Full Goods & Services

Filing Basis & Declarations

Other Marks by Shenzhen Maidehao Technology Co., Ltd.

Other Marks by Xia Liu

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