OpenAI OpCo, LLC (P) vs BYZANTINE CHAIN LTD (D)

Suspended
Oppositions

Proceeding Details

Proceeding Number

91305335

Filing Date

Feb 18, 2026

Last Status Update

Apr 30, 2026

Interlocutory Attorney

JACOB E VIGIL

Parties

Plaintiff

GPT
OpenAI OpCo, LLC

1801 EAST 6TH STREET, SUITE 300

AUSTIN, TX 78702

Attorney / Correspondent:

CHRISTOPHER M WEIMERPIRKEY BARBER PLLC

1801 EAST 6TH STREET, SUITE 300

AUSTIN, TX 78702

Marks:

GPT
Pending
S/N: 97733259
GPT-4
Registered
|Reg #: 7232349|S/N: 97836275
GPT-3
Registered
|Reg #: 6294671|S/N: 90092493
GPT-5
Pending
S/N: 98089548
CHATGPT
Pending
S/N: 97733261
VS

Defendant

FURGPT
BYZANTINE CHAIN LTD

5 WEST MENDENHALL STREET #202

BOZEMAN, MT 59715

Attorney / Correspondent:

PAUL DITMYER

5 WEST MENDENHALL STREET #202

BOZEMAN, MT 59715

Mark:

FURGPT
Pending
S/N: 99267755

TTAB Documents

Title
Date
Entry #
Category
Code
Actions
NOTICE OF DEFAULT
Apr 30, 2026
4
Defaults
144
INSTITUTED
Feb 18, 2026
3
Status
128
NOTICE AND TRIAL DATES SENT; ANSWER DUE:
Feb 18, 2026
2
Scheduling
707
FILED AND FEE
Feb 18, 2026
1
Fees
124

Related Proceedings

Other TTAB proceedings involving the same parties.