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Official data from USPTO

RK RIKEN KEIKI

This trademark appears in the official USPTO history.

Even when the status is closed, the history helps calibrate risk, avoid repeating mistakes, and define a safe naming strategy.

NOTICE OF ACCEPTANCE OF SEC. 71 & 15 - E-MAILEDType: CombinedOffice: United States

Quick snapshot

RK RIKEN KEIKI

ST13

US500000079261021

Class

9, 37

Filing

79261021

Registration

6181960

Risk and opportunity diagnosis

Executive reading for naming, filing, and monitoring decisions.

USPTO status

NOTICE OF ACCEPTANCE OF SEC. 71 & 15 - E-MAILED

Case type

Application and registration

Recorded events

37

Latest update

08/20/2026

Trademark type

Combined

Nice classes

9, 37

Filing date

03/07/2019

Registration date

10/27/2020

Expiration date

-

Complete case details

Structured fields from the responsible authority and the official record.

Status date

08/20/2026

Last transaction

08/20/2026

Responsible office

United States Patent and Trademark Office

Status code

739

Official register

Principal Register

Drawing code

5

Owner type

03

Owner location

JP

Examiner

RIEPEL, CHRISTINA MAXINE

Current location

Historical data usage

Holders and representatives

Holders

RIKEN KEIKI Co., Ltd.

Representatives

Emily Haas Michael Best & Friedrich LLP

Technical classification

Nice Classes

Class 9Class 37

Vienna Codes

No Vienna codes available.

Goods and services

Class 9

Measuring or testing apparatus and instrumentsgas testing instruments; gas leak detectors for detecting the presence of gas; mechanical equipment for measuring or testing gas leak; gas leak alarmsincluding gas leak detectors; gas leak detecting apparatus; chemical substance detecting apparatustoxic gas detecting apparatus; radiation detecting apparatusnot for medical purposes; measuring instruments used for hydrocarbon detection; gas leak detecting sensors; pH measuring instruments; continuous measuring instruments for detecting gas type and concentration; measuring instruments using laser or radiation for measuring combustible gas and toxic gasnot for medical purposes; remote control telemetering apparatus and instruments; alcohol concentration measuring apparatus and instruments; optical measuring apparatus and instruments for use in measurement of the amount of heat in power generation plantsfactories and ships; gas measuring instruments with recording device for detecting gas type and concentration; computers; computer peripheral devices; recorded computer software for use in monitoringdetecting and testing for the presence of gas leaks

Class 37

Installationmaintenance and repair of gas detectorsgas leak alarms and gas leak detecting apparatus; installationmaintenance and repair of measuring or testing apparatus and instruments; installationmaintenance and repair of remote control telemetering apparatus and instruments; installationmaintenance and repair of telecommunications apparatus and instruments; installationmaintenance and repair of computers and computer peripherals

Publications

History of USPTO decisions and trademark events.

37 publications found

NA75

NOTICE OF ACCEPTANCE OF SEC. 71 & 15 - E-MAILED

08/20/2026

C75A

REGISTERED - SEC. 71 ACCEPTED & SEC. 15 ACK.

08/20/2026

APRE

CASE ASSIGNED TO POST REGISTRATION PARALEGAL

08/19/2026

ES75

TEAS SECTION 71 & 15 RECEIVED

05/12/2026

REM3

COURTESY REMINDER - SEC. 71 (6-YR) E-MAILED

10/27/2025

FINO

FINAL DECISION TRANSACTION PROCESSED BY IB

03/01/2021

FICS

FINAL DISPOSITION NOTICE SENT TO IB

02/08/2021

FIMP

FINAL DISPOSITION PROCESSED

02/08/2021

FICR

FINAL DISPOSITION NOTICE CREATED, TO BE SENT TO IB

01/27/2021

R.PR

REGISTERED-PRINCIPAL REGISTER

10/27/2020

NPUB

OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED

08/11/2020

PUBO

PUBLISHED FOR OPPOSITION

08/11/2020

GPNX

NOTIFICATION PROCESSED BY IB

08/07/2020

OPNS

NOTIFICATION OF POSSIBLE OPPOSITION SENT TO IB

07/22/2020

OP2R

NOTICE OF START OF OPPOSITION PERIOD CREATED, TO BE SENT TO IB

07/22/2020

NONP

NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED

07/22/2020

CNSA

APPROVED FOR PUB - PRINCIPAL REGISTER

07/09/2020

TEME

TEAS/EMAIL CORRESPONDENCE ENTERED

07/09/2020

CRFA

CORRESPONDENCE RECEIVED IN LAW OFFICE

07/09/2020

TROA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

07/09/2020

RFNT

REFUSAL PROCESSED BY IB

05/01/2020

GNRN

NOTIFICATION OF NON-FINAL ACTION E-MAILED

03/22/2020

GNRT

NON-FINAL ACTION E-MAILED

03/22/2020

CNRT

NON-FINAL ACTION WRITTEN

03/22/2020

TEME

TEAS/EMAIL CORRESPONDENCE ENTERED

01/29/2020

CRFA

CORRESPONDENCE RECEIVED IN LAW OFFICE

01/29/2020

ALIE

ASSIGNED TO LIE

01/28/2020

TROA

TEAS RESPONSE TO OFFICE ACTION RECEIVED

01/21/2020

RFNT

REFUSAL PROCESSED BY IB

08/16/2019

RFCS

NON-FINAL ACTION MAILED - REFUSAL SENT TO IB

07/26/2019

RFRR

REFUSAL PROCESSED BY MPU

07/26/2019

RFCR

NON-FINAL ACTION (IB REFUSAL) PREPARED FOR REVIEW

07/02/2019

CNRT

NON-FINAL ACTION WRITTEN

07/01/2019

MAFR

APPLICATION FILING RECEIPT MAILED

06/25/2019

DOCK

ASSIGNED TO EXAMINER

06/20/2019

NWOS

NEW APPLICATION OFFICE SUPPLIED DATA ENTERED

06/20/2019

REPR

SN ASSIGNED FOR SECT 66A APPL FROM IB

06/20/2019

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