LIGHT & WONDER, INC. (P) vs Caelum Inc. (D)
Suspended
Oppositions
Proceeding Details
Proceeding Number
Filing Date
Jan 6, 2026
Last Status Update
Mar 18, 2026
Interlocutory Attorney
ANN LINNEHAN VOGLER
Parties
Plaintiff
LIGHT & WONDER, INC.
350 N ORLEANS ST
CHICAGO, IL 60654
Attorney / Correspondent:
Marks:
DUO FÚ DUO CÁI
Registered
|Reg #: 4660303|S/N: 85896572
DUO FÚ DUO CÁI
LIVE - REGISTERED
TrademarkWordOwner: LIGHT & WONDER, INC.
Status: REGISTERED AND RENEWED
Record Details
Serial No.
85896572
Registration No.
4660303
Status
LIVE
Important Dates
Filed
Apr 5, 2013
Registered
Dec 23, 2014
First Use
May 22, 2012
Goods & Services
Class 028
Slot machines; gambling machines; electronic gaming machines; replacement parts for all of the foregoing
VS
Defendant
Caelum Inc.
480 TOTTEN POND ROAD, 4TH FLOOR
WALTHAM, MA 02451
Attorney / Correspondent:
SEAN D. DETWEILERMORSE, BARNES-BROWN & PENDLETON, P.C.
480 TOTTEN POND ROAD, 4TH FLOOR
WALTHAM, MA 02451
Mark:
DUO FU DUO SHOU
Pending
S/N: 99053252
DUO FU DUO SHOU
LIVE - PENDING
TrademarkWordOwner: Caelum Inc.
Status: OPPOSITION PENDING

Record Details
Serial No.
99053252
Status
LIVE
Important Dates
Filed
Feb 24, 2025
First Use
Jul 8, 2019
Goods & Services
Class 009
Downloadable video game software; Downloadable software in the nature of a mobile application for games; Downloadable interactive game software; Downloadable game software
TTAB Documents
Title | Date | Entry # | Category | Code | Actions |
|---|---|---|---|---|---|
NOTICE OF DEFAULT | Mar 18, 2026 | 4 | Defaults | 144 | |
INSTITUTED | Jan 6, 2026 | 3 | Status | 128 | |
NOTICE AND TRIAL DATES SENT; ANSWER DUE: | Jan 6, 2026 | 2 | Scheduling | 707 | |
FILED AND FEE | Jan 6, 2026 | 1 | Fees | 124 |