Who owns the WORD STACKS trademark?

The WORD STACKS trademark is owned by PeopleFun, Inc..

What class is the WORD STACKS trademark registered in?

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

What is the serial number for WORD STACKS?

The USPTO serial number for WORD STACKS is 88290040.

What is the registration number for WORD STACKS?

WORD STACKS is registered under USPTO registration number 5923057.

WORD STACKS - Owned by PeopleFun, Inc. - (Class 009)

What to file next

Section 9 renewal, filed with a Section 8 declaration

When: Due between the ninth and tenth anniversary of registration, then before each tenth anniversary after that.
Extensions and grace: A six-month grace period follows, with an added per-class fee.
If it is missed: A missed renewal cancels the registration, and there is no revival route for it.

How Section 9 renewal 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, 2018

First use in commerce: Sep 01, 2018

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 ClaimedUse Application CurrentlySection 8 AcceptedTrademark

International Filings

Madrid Protocol1 filings

This mark has 1 Madrid Protocol filing on record with the USPTO.

1493566

480Jul 22, 2019

Source: USPTO Madrid International Filing Requests

Status History

31 events

REGISTERED - SEC. 8 (6-YR) ACCEPTED

Sep 24, 2025

Code 8.OK

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

Sep 24, 2025

Code NAS8

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Sep 22, 2025

Code APRE

ASSIGNMENT OF OWNERSHIP NOT UPDATED AUTOMATICALLY

Jul 25, 2025

Code ASCK

TEAS SECTION 8 RECEIVED

Jun 02, 2025

Code ES8R

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

Nov 26, 2024

Code REM1

REGISTERED-SUPPLEMENTAL REGISTER

Nov 26, 2019

Code R.SR

LAW OFFICE PUBLICATION REVIEW COMPLETED

Oct 22, 2019

Code PREV

ASSIGNED TO LIE

Oct 17, 2019

Code ALIE

APPROVED FOR REGISTRATION SUPPLEMENTAL REGISTER

Oct 11, 2019

Code CNTA

EXAMINERS AMENDMENT -WRITTEN

Oct 10, 2019

Code CNEA

EXAMINER'S AMENDMENT ENTERED

Oct 10, 2019

Code XAEC

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Oct 10, 2019

Code GNEN

EXAMINERS AMENDMENT E-MAILED

Oct 10, 2019

Code GNEA

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Oct 09, 2019

Code GNRN

NON-FINAL ACTION WRITTEN

Oct 09, 2019

Code CNRT

NON-FINAL ACTION E-MAILED

Oct 09, 2019

Code GNRT

NOTICE OF ACCEPTANCE OF AMENDMENT TO ALLEGE USE E-MAILED

Oct 02, 2019

Code AAUA

USE AMENDMENT ACCEPTED

Oct 01, 2019

Code IUAA

TEAS/EMAIL CORRESPONDENCE ENTERED

Sep 05, 2019

Code TEME

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Sep 04, 2019

Code TROA

CORRESPONDENCE RECEIVED IN LAW OFFICE

Sep 04, 2019

Code CRFA

AMENDMENT TO USE PROCESSING COMPLETE

Aug 29, 2019

Code AUPC

USE AMENDMENT FILED

Aug 29, 2019

Code IUAF

TEAS AMENDMENT OF USE RECEIVED

Aug 28, 2019

Code EAAU

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Apr 17, 2019

Code GNRN

NON-FINAL ACTION E-MAILED

Apr 17, 2019

Code GNRT

NON-FINAL ACTION WRITTEN

Apr 17, 2019

Code CNRT

ASSIGNED TO EXAMINER

Apr 17, 2019

Code DOCK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Feb 27, 2019

Code NWOS

NEW APPLICATION ENTERED

Feb 08, 2019

Code NWAP

Other Marks by PeopleFun, Inc.

Additional USPTO filings from the same owner.

WOR

WORDSCAPES

76977730

PEOPLEFUN, INC.

REGISTERED

WOR

WORDSCAPES SOLITAIRE

98671630

Peoplefun, Inc.

REGISTERED

AST

ASTROBREAKER

98016229

Peoplefun, Inc.

REGISTERED

WOR

WORDSCAPES

87517822

Peoplefun, Inc.

REGISTERED

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Additional USPTO filings handled by the same attorney of record.

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WORD STACKS

What to file next

Full Goods & Services

Filing Basis & Declarations

International Filings

Other Marks by PeopleFun, Inc.

Other Marks in Class 009 — Electronics, software & scientific instruments

Other Marks by Connie L. Ellerbach, Esq.

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