TCCA
TEAS CHANGE OF CORRESPONDENCE RECEIVED
07/22/2026
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Official data from USPTO
T 1/2
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Active USPTO registrationType: CombinedOffice: United States
Risk and opportunity diagnosis
Executive reading for naming, filing, and monitoring decisions.
USPTO status
Active USPTO registration
Case type
Application and registration
Recorded events
26
Latest update
07/23/2026
Trademark type
Combined
Nice classes
41
Filing date
07/11/2019
Registration date
10/27/2020
Expiration date
-
Complete case details
Structured fields from the responsible authority and the official record.
Status date
10/27/2020
Last transaction
07/23/2026
Responsible office
United States Patent and Trademark Office
Status code
700
Official register
Principal Register
First use anywhere
03/12/2019
First use in commerce
03/12/2019
Drawing code
3
Owner type
16
Owner location
Mercer Island, WA, US
Examiner
BLACK, MILDRED ELIZABETH
Law office
O30
Current location
PUBLICATION AND ISSUE SECTION
Mark description
The mark consists of the scientific symbol for half-life, expressed as stylized "T 1/2", displayed in a circle.
Holders and representatives
Holders
Half-Life LLC
Representatives
Mike Rodenbaugh Rodenbaugh Law LLC
Technical classification
Nice Classes
Class 41
Vienna Codes
No Vienna codes available.
Goods and services
Class 41
Sports instruction services; Conducting guided outdoor expeditions; Entertainment servicesan ongoing multimedia program featuring sportstravel and adventure distributed via various platforms across multiple forms of transmission media; Providing sports information; Providing sports training information and advice via a website; Providing a website featuring entertainment information in the field(s) of sportstravel and adventure; Providing information relating to the organizing of educationalculturalsportingentertainment exhibitions
Publications
History of USPTO decisions and trademark events.
26 publications found
ARAA
ATTORNEY/DOM.REP.REVOKED AND/OR APPOINTED
07/22/2026
REAP
TEAS REVOKE/APP/CHANGE ADDR OF ATTY/DOM REP RECEIVED
07/22/2026
PARI
TEAS VOLUNTARY AMENDMENT RECEIVED
11/05/2025
REM1
COURTESY REMINDER - SEC. 8 (6-YR) E-MAILED
10/27/2025
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
NONP
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
07/22/2020
CNSA
APPROVED FOR PUB - PRINCIPAL REGISTER
07/08/2020
TEME
TEAS/EMAIL CORRESPONDENCE ENTERED
06/19/2020
CRFA
CORRESPONDENCE RECEIVED IN LAW OFFICE
06/19/2020
ALIE
ASSIGNED TO LIE
06/17/2020
NREV
NOTICE OF REVIVAL - E-MAILED
06/11/2020
TROA
TEAS RESPONSE TO OFFICE ACTION RECEIVED
06/10/2020
PETG
PETITION TO REVIVE-GRANTED
06/10/2020
PROA
TEAS PETITION TO REVIVE RECEIVED
06/10/2020
MAB2
ABANDONMENT NOTICE E-MAILED - FAILURE TO RESPOND
06/05/2020
ABN2
ABANDONMENT - FAILURE TO RESPOND OR LATE RESPONSE
06/04/2020
GNRN
NOTIFICATION OF NON-FINAL ACTION E-MAILED
10/02/2019
GNRT
NON-FINAL ACTION E-MAILED
10/02/2019
CNRT
NON-FINAL ACTION WRITTEN
10/02/2019
DOCK
ASSIGNED TO EXAMINER
09/26/2019
MDSM
NOTICE OF DESIGN SEARCH CODE E-MAILED
07/19/2019
NWOS
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
07/18/2019
NWAP
NEW APPLICATION ENTERED
07/15/2019
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