Who owns the STACK DUEL trademark?

The STACK DUEL trademark is owned by Diffy Games LLC.

What class is the STACK DUEL trademark registered in?

The STACK DUEL trademark is registered in Class 028 (Games, toys & sporting goods).

What is the serial number for STACK DUEL?

The USPTO serial number for STACK DUEL is 99265890.

What is the registration number for STACK DUEL?

STACK DUEL is registered under USPTO registration number 0.

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Home Search: STACK DUELSTACK DUEL #99265890

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Updated Sep 17, 2026·35 searches this week

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STA

USPTO Trademark Record

PENDING

STACK DUEL

SN 99265890·Reg 0·Filed Jul 03, 2025

Owner Diffy Games LLC

Games, toys and playthings; video game apparatus; gymnastic and sporting articles; decorations for Christmas trees.

STACK DUEL (Serial No. 99265890), Registration No. 0, is a pending US trademark filed on Jul 03, 2025 by Diffy Games LLC. This trademark covers Class 028 (Games, toys & sporting goods).

sou-expired: October 17, 202630 days remaining

Conflict Analysis

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Mark Intelligence

STACK DUEL (Reg. #0) is a pending US trademark that was filed in 2025 and is currently under USPTO examination. The mark covers Class 028 (Games, toys & sporting goods). Goods and services include Games, toys and playthings; video game apparatus; gymnastic and sporting articles; decorations for Christmas trees.. The mark faced 1 opposition proceeding during prosecution.

FILED

Jul 03, 2025

SERIAL

99265890

REG#

REGISTERED

Dec 31, 1969

Filing Information

StatusPENDING

Filing DateJul 03, 2025

Serial Number99265890

Registration No.0

Registration DateDec 31, 1969

Status DateFeb 17, 2026

Published for OppositionDec 23, 2025

Filing Basis & Declarations

Standard Characters ClaimedTrademark

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 028Games, toys & sporting goods

US codes: 022, 023, 038, 050

Games, toys and playthings; video game apparatus; gymnastic and sporting articles; decorations for Christmas trees.

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

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Status History

13 events

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

Feb 17, 2026

NOA E-MAILED - SOU REQUIRED FROM APPLICANT

PUBLISHED FOR OPPOSITION

Dec 23, 2025

PUBLISHED FOR OPPOSITION

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Dec 23, 2025

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Dec 17, 2025

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Nov 21, 2025

EXAMINERS AMENDMENT -WRITTEN

EXAMINERS AMENDMENT E-MAILED

Nov 21, 2025

EXAMINERS AMENDMENT E-MAILED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Nov 21, 2025

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

EXAMINER'S AMENDMENT ENTERED

Nov 21, 2025

EXAMINER'S AMENDMENT ENTERED

APPROVED FOR PUB - PRINCIPAL REGISTER

Nov 21, 2025

APPROVED FOR PUB - PRINCIPAL REGISTER

ASSIGNED TO EXAMINER

Nov 20, 2025

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Nov 07, 2025

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 03, 2025

NEW APPLICATION ENTERED

APPLICATION FILING RECEIPT MAILED

Jul 03, 2025

APPLICATION FILING RECEIPT MAILED

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