Who owns the BUILDING STACK trademark?

The BUILDING STACK trademark is owned by LANDLORD WEB SOLUTIONS INC..

What is the serial number for BUILDING STACK?

The USPTO serial number for BUILDING STACK is 87816737.

What is the registration number for BUILDING STACK?

BUILDING STACK is registered under USPTO registration number 6060642.

BUILDING STACK - Owned by LANDLORD WEB SOLUTIONS INC. - (Class 009, Class 042)

Q: What class is the BUILDING STACK trademark registered in?

The BUILDING STACK trademark is registered in Class 009 (Electronics, software & scientific instruments), Class 042 (Scientific, technology & SaaS services).

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: Dec 01, 2019

First use in commerce: Dec 01, 2019

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.

Class 042Scientific, technology & SaaS services

US codes: 100, 101

First use anywhere: Dec 01, 2019

First use in commerce: Dec 01, 2019

Scientific and technological services and research and design relating thereto; industrial analysis, industrial research and industrial design services; quality control and authentication services; design and development of computer hardware and software.

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

Status History

52 events

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Sep 02, 2026

Code ASGN

AUTOMATIC UPDATE OF ASSIGNMENT OF OWNERSHIP

Aug 19, 2026

Code ASGN

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

Jul 26, 2026

Code APRE

REGISTERED - SEC. 8 (6-YR) ACCEPTED

Jul 26, 2026

Code 8.OK

NOTICE OF ACCEPTANCE OF SEC. 8 - E-MAILED

Jul 26, 2026

Code NAS8

TEAS SECTION 8 RECEIVED

May 19, 2026

Code ES8R

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

May 19, 2025

Code REM1

TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED

Oct 25, 2024

Code REAP

ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED

Oct 25, 2024

Code ARAA

TEAS CHANGE OF DOMESTIC REPRESENTATIVES ADDRESS

Oct 25, 2024

Code ECDR

TEAS CHANGE OF CORRESPONDENCE RECEIVED

Oct 25, 2024

Code TCCA

TEAS WITHDRAWAL OF ATTORNEY RECEIVED-FIRM RETAINS

Oct 25, 2024

Code EWAF

REGISTERED-SUPPLEMENTAL REGISTER

May 19, 2020

Code R.SR

LAW OFFICE PUBLICATION REVIEW COMPLETED

Apr 15, 2020

Code PREV

EXAMINERS AMENDMENT -WRITTEN

Apr 08, 2020

Code CNEA

EXAMINERS AMENDMENT E-MAILED

Apr 08, 2020

Code GNEA

NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED

Apr 08, 2020

Code GNEN

EXAMINER'S AMENDMENT ENTERED

Apr 08, 2020

Code XAEC

APPROVED FOR REGISTRATION SUPPLEMENTAL REGISTER

Apr 08, 2020

Code CNTA

FINAL REFUSAL WRITTEN

Apr 05, 2020

Code CNFR

FINAL REFUSAL E-MAILED

Apr 05, 2020

Code GNFR

NOTIFICATION OF FINAL REFUSAL EMAILED

Apr 05, 2020

Code GNFN

CORRESPONDENCE RECEIVED IN LAW OFFICE

Mar 13, 2020

Code CRFA

TEAS/EMAIL CORRESPONDENCE ENTERED

Mar 13, 2020

Code TEME

TEAS RESPONSE TO SUSPENSION INQUIRY RECEIVED

Mar 10, 2020

Code ERSI

NOTICE OF ACCEPTANCE OF AMENDMENT TO ALLEGE USE E-MAILED

Feb 12, 2020

Code AAUA

USE AMENDMENT ACCEPTED

Feb 11, 2020

Code IUAA

USE AMENDMENT FILED

Jan 25, 2020

Code IUAF

AMENDMENT TO USE PROCESSING COMPLETE

Jan 25, 2020

Code AUPC

TEAS AMENDMENT OF USE RECEIVED

Jan 24, 2020

Code EAAU

SUSPENSION LETTER WRITTEN

Jan 23, 2020

Code CNSL

LETTER OF SUSPENSION E-MAILED

Jan 23, 2020

Code GNSL

NOTIFICATION OF LETTER OF SUSPENSION E-MAILED

Jan 23, 2020

Code GNS3

CORRESPONDENCE RECEIVED IN LAW OFFICE

Jan 21, 2020

Code CRFA

TEAS/EMAIL CORRESPONDENCE ENTERED

Jan 21, 2020

Code TEME

TEAS RESPONSE TO SUSPENSION INQUIRY RECEIVED

Jan 17, 2020

Code ERSI

SUSPENSION INQUIRY WRITTEN

Jul 19, 2019

Code CNSI

INQUIRY TO SUSPENSION E-MAILED

Jul 19, 2019

Code GNSI

NOTIFICATION OF INQUIRY AS TO SUSPENSION E-MAILED

Jul 19, 2019

Code GNS2

SUSPENSION LETTER WRITTEN

Jan 14, 2019

Code CNSL

LETTER OF SUSPENSION E-MAILED

Jan 14, 2019

Code GNSL

NOTIFICATION OF LETTER OF SUSPENSION E-MAILED

Jan 14, 2019

Code GNS3

ASSIGNED TO LIE

Dec 21, 2018

Code ALIE

CORRESPONDENCE RECEIVED IN LAW OFFICE

Dec 21, 2018

Code CRFA

TEAS/EMAIL CORRESPONDENCE ENTERED

Dec 21, 2018

Code TEME

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Dec 18, 2018

Code TROA

NON-FINAL ACTION WRITTEN

Jun 18, 2018

Code CNRT

NON-FINAL ACTION E-MAILED

Jun 18, 2018

Code GNRT

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Jun 18, 2018

Code GNRN

ASSIGNED TO EXAMINER

Jun 13, 2018

Code DOCK

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Mar 08, 2018

Code NWOS

NEW APPLICATION ENTERED

Mar 05, 2018

Code NWAP

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BUILDING STACK

What to file next

Full Goods & Services

Filing Basis & Declarations

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

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