Who owns the SIFENYU trademark?

The SIFENYU trademark is owned by Liu, Shuangyuan.

What class is the SIFENYU trademark registered in?

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

What is the serial number for SIFENYU?

The USPTO serial number for SIFENYU is 90249842.

What is the registration number for SIFENYU?

SIFENYU is registered under USPTO registration number 6403190.

SIFENYU - Owned by Liu, Shuangyuan - (Class 009)

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: Sep 01, 2020

First use in commerce: Sep 01, 2020

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.

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

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application CurrentlyTrademark

Status History

9 events

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

Jun 29, 2026

Code REM1

REGISTERED-PRINCIPAL REGISTER

Jun 29, 2021

Code R.PR

PUBLISHED FOR OPPOSITION

Apr 13, 2021

Code PUBO

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Apr 13, 2021

Code NPUB

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Mar 24, 2021

Code NONP

APPROVED FOR PUB - PRINCIPAL REGISTER

Mar 11, 2021

Code CNSA

ASSIGNED TO EXAMINER

Mar 10, 2021

Code DOCK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Nov 29, 2020

Code NWOS

NEW APPLICATION ENTERED

Oct 15, 2020

Code NWAP

Other Marks by Liu, Shuangyuan

Additional USPTO filings from the same owner.

OZD

OZDD

90382156

Liu Shuangyuan

REGISTERED

SIF

SIFENYU

90249850

Liu, Shuangyuan

REGISTERED

ZIE

ZIECE

90266648

Liu, Shuangyuan

REGISTERED

SIF

SIFENYU

90249862

Liu, Shuangyuan

REGISTERED

Other Marks by Bole Yuan

Additional USPTO filings handled by the same attorney of record.

EZR

EZRUN

90308021

REGISTERED

LAV

LAVA

87108182

REGISTERED

KAR

KARDY

86862549

REGISTERED

LAV

LAVA GENIE

98741378

REGISTERED

SIFENYU

What to file next

Full Goods & Services

Filing Basis & Declarations

Other Marks by Liu, Shuangyuan

Other Marks by Bole Yuan

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