Who owns the THINK-PLAY-HACK trademark?

The THINK-PLAY-HACK trademark is owned by Guldi, Ellen Joanna.

What class is the THINK-PLAY-HACK trademark registered in?

The THINK-PLAY-HACK trademark is registered in Class 041 (Education & entertainment services).

What is the serial number for THINK-PLAY-HACK?

The USPTO serial number for THINK-PLAY-HACK is 88378331.

What is the registration number for THINK-PLAY-HACK?

THINK-PLAY-HACK is registered under USPTO registration number 6224878.

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Updated Oct 8, 2026·37 searches this week

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THI

USPTO Trademark Record

REGISTERED

THINK-PLAY-HACK

SN 88378331·Reg 6224878·Filed Apr 09, 2019

Owner Guldi, Ellen Joanna

Education; providing of training; entertainment; sporting and cultural activities.

THINK-PLAY-HACK (Serial No. 88378331), Registration No. 6224878, is a registered US trademark filed on Apr 09, 2019 by Guldi, Ellen Joanna. This trademark covers Class 041 (Education & entertainment services).

Renewal window: December 22, 202675 days remaining

Mark Intelligence

THINK-PLAY-HACK (Reg. #6224878) is a registered US trademark that has been protecting its owner, Guldi, Ellen Joanna, since 2019. The mark covers Class 041 (Education & entertainment services). Goods and services include Education; providing of training; entertainment; sporting and cultural activities.. The mark faced 1 opposition proceeding during prosecution.

FILED

Apr 09, 2019

SERIAL

88378331

REG#

6224878

REGISTERED

Dec 22, 2020

Filing Information

StatusREGISTERED

Filing DateApr 09, 2019

Serial Number88378331

Registration No.6224878

Registration DateDec 22, 2020

Status DateDec 22, 2020

Published for OppositionOct 06, 2020

Filing Basis & Declarations

Standard Characters ClaimedFiled as Use ApplicationUse Application Currently

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 041Education & entertainment services

US codes: 100, 101, 107

First use anywhere: Jul 01, 2018

First use in commerce: Jul 03, 2018

Education; providing of training; entertainment; sporting and cultural activities.

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

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Status History

23 events

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

Dec 22, 2025

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

REGISTERED-PRINCIPAL REGISTER

Dec 22, 2020

REGISTERED-PRINCIPAL REGISTER

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

Oct 06, 2020

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

PUBLISHED FOR OPPOSITION

Oct 06, 2020

PUBLISHED FOR OPPOSITION

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

Sep 16, 2020

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

APPROVED FOR PUB - PRINCIPAL REGISTER

Aug 31, 2020

APPROVED FOR PUB - PRINCIPAL REGISTER

EXAMINERS AMENDMENT E-MAILED

Aug 31, 2020

EXAMINERS AMENDMENT E-MAILED

EXAMINERS AMENDMENT -WRITTEN

Aug 31, 2020

EXAMINERS AMENDMENT -WRITTEN

EXAMINER'S AMENDMENT ENTERED

Aug 31, 2020

EXAMINER'S AMENDMENT ENTERED

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Aug 31, 2020

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

ASSIGNED TO EXAMINER

Jun 12, 2020

ASSIGNED TO EXAMINER

NOTIFICATION OF FINAL REFUSAL EMAILED

Jan 31, 2020

NOTIFICATION OF FINAL REFUSAL EMAILED

FINAL REFUSAL E-MAILED

Jan 31, 2020

FINAL REFUSAL E-MAILED

FINAL REFUSAL WRITTEN

Jan 31, 2020

FINAL REFUSAL WRITTEN

TEAS/EMAIL CORRESPONDENCE ENTERED

Dec 30, 2019

TEAS/EMAIL CORRESPONDENCE ENTERED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Dec 29, 2019

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Dec 29, 2019

TEAS RESPONSE TO OFFICE ACTION RECEIVED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jul 12, 2019

NOTIFICATION OF NON-FINAL ACTION E-MAILED

NON-FINAL ACTION E-MAILED

Jul 12, 2019

NON-FINAL ACTION E-MAILED

NON-FINAL ACTION WRITTEN

Jul 12, 2019

NON-FINAL ACTION WRITTEN

ASSIGNED TO EXAMINER

Jun 19, 2019

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Apr 25, 2019

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Apr 12, 2019

NEW APPLICATION ENTERED

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