Who owns the OP STACK trademark?

The OP STACK trademark is owned by OP Labs PBC.

What class is the OP STACK trademark registered in?

The OP STACK trademark is registered in Class 042 (Scientific, technology & SaaS services).

What is the serial number for OP STACK?

The USPTO serial number for OP STACK is 98102346.

What is the registration number for OP STACK?

OP STACK is registered under USPTO registration number 0.

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Updated Sep 16, 2026·30 searches this week

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OPS

USPTO Trademark Record

ABANDONED

OP STACK

SN 98102346·Reg 0·Filed Jul 26, 2023

Owner OP Labs PBC

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.

OP STACK (Serial No. 98102346), Registration No. 0, is a abandoned US trademark filed on Jul 26, 2023 by OP Labs PBC. This trademark covers Class 042 (Scientific, technology & SaaS services).

Conflict Analysis

Full conflict analysis for OP STACK (SN 98102346) against the USPTO database with detailed risk factor explanations. AI-powered — takes ~1-2 min.

Mark Intelligence

OP STACK (Reg. #0) is an abandoned US trademark that was filed in 2023 but has since been abandoned. The mark covers Class 042 (Scientific, technology & SaaS services). Goods and services include Scientific and technological services and research and design relating thereto; industrial analysis, industrial research....

FILED

Jul 26, 2023

SERIAL

98102346

REG#

REGISTERED

Dec 31, 1969

Filing Information

StatusABANDONED

Filing DateJul 26, 2023

Serial Number98102346

Registration No.0

Registration DateDec 31, 1969

Status DateFeb 04, 2026

Mark TypeStandard characters

Filing Basis & Declarations

Standard Characters Claimed

Full Goods & Services

CLASSES

OFFICE

USPTO

COUNTRY

Class 042Scientific, technology & SaaS services

US codes: 100, 101

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

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Status History

30 events

ABANDONMENT NOTICE MAILED - AFTER EX PARTE APPEAL

May 01, 2026

ABANDONMENT NOTICE MAILED - AFTER EX PARTE APPEAL

EXPARTE APPEAL TERMINATED

Feb 04, 2026

EXPARTE APPEAL TERMINATED

ABANDONMENT - AFTER EX PARTE APPEAL

Feb 04, 2026

ABANDONMENT - AFTER EX PARTE APPEAL

EXPARTE APPEAL DISMISSED - FAILURE TO FILE BRIEF

Dec 20, 2025

EXPARTE APPEAL DISMISSED - FAILURE TO FILE BRIEF

ACTION CONTINUING FINAL - COMPLETED

Oct 03, 2025

ACTION CONTINUING FINAL - COMPLETED

ACTION DENYING REQ FOR RECON E-MAILED

Oct 03, 2025

ACTION DENYING REQ FOR RECON E-MAILED

NOTIFICATION OF ACTION DENYING REQ FOR RECON E-MAILED

Oct 03, 2025

NOTIFICATION OF ACTION DENYING REQ FOR RECON E-MAILED

CORRESPONDENCE RECEIVED IN LAW OFFICE

May 07, 2025

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

May 07, 2025

TEAS/EMAIL CORRESPONDENCE ENTERED

ASSIGNED TO LIE

May 06, 2025

ASSIGNED TO LIE

EXPARTE APPEAL RECEIVED AT TTAB

Apr 25, 2025

EXPARTE APPEAL RECEIVED AT TTAB

JURISDICTION RESTORED TO EXAMINING ATTORNEY

Apr 25, 2025

JURISDICTION RESTORED TO EXAMINING ATTORNEY

EX PARTE APPEAL-INSTITUTED

Apr 25, 2025

EX PARTE APPEAL-INSTITUTED

TEAS REQUEST FOR RECONSIDERATION RECEIVED

Apr 25, 2025

TEAS REQUEST FOR RECONSIDERATION RECEIVED

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

Jan 14, 2025

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

Jan 14, 2025

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

FINAL REFUSAL WRITTEN

Oct 25, 2024

FINAL REFUSAL WRITTEN

FINAL REFUSAL E-MAILED

Oct 25, 2024

FINAL REFUSAL E-MAILED

NOTIFICATION OF FINAL REFUSAL EMAILED

Oct 25, 2024

NOTIFICATION OF FINAL REFUSAL EMAILED

TEAS RESPONSE TO OFFICE ACTION RECEIVED

Oct 03, 2024

TEAS RESPONSE TO OFFICE ACTION RECEIVED

CORRESPONDENCE RECEIVED IN LAW OFFICE

Oct 03, 2024

CORRESPONDENCE RECEIVED IN LAW OFFICE

TEAS/EMAIL CORRESPONDENCE ENTERED

Oct 03, 2024

TEAS/EMAIL CORRESPONDENCE ENTERED

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

Jun 27, 2024

APPLICATION EXTENSION TO RESPONSE PERIOD - RECEIVED

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

Jun 27, 2024

APPLICATION EXTENSION GRANTED/RECEIPT PROVIDED

NON-FINAL ACTION WRITTEN

Apr 03, 2024

NON-FINAL ACTION WRITTEN

NON-FINAL ACTION E-MAILED

Apr 03, 2024

NON-FINAL ACTION E-MAILED

NOTIFICATION OF NON-FINAL ACTION E-MAILED

Apr 03, 2024

NOTIFICATION OF NON-FINAL ACTION E-MAILED

ASSIGNED TO EXAMINER

Mar 28, 2024

ASSIGNED TO EXAMINER

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

Aug 24, 2023

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

NEW APPLICATION ENTERED

Jul 29, 2023

NEW APPLICATION ENTERED

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