DUROGUARDRR
LIVE
Serial Number
99488951
Owner
Signal Fluid Solutions, Inc.Attorney
Linda H. LiuFiling Date
Nov 10, 2025
DUROGUARDRR Trademark
Serial Number: 99488951
DUROGUARDRR is a trademark filed by
Signal Fluid Solutions, Inc.
on November 10, 2025. The trademark is classified under Class 4 (Lubricants & Fuels).
The application is currently pending registration.
Trademark Classes
Owner Contact Info
Legal Representation
Correspondence Address
Linda H. Liu Knobbe, Martens, Olson & Bear, LLP
2040 Main Street, 14th Floor
Irvine, CA 92614
United States
Trademark Details
Filing Date
November 10, 2025
Registration Date
Not Registered
Published for Opposition
April 21, 2026
Goods & Services
Locomotive engine oil; Lubricating oil, namely, governor oil; Lubricating oil, namely, journal oil; Lubricating greases for locomotive parts
Filing History
NOA E-MAILED - SOU REQUIRED FROM APPLICANT
Jun 16, 2026 NOAM
OFFICIAL GAZETTE PUBLICATION CONFIRMATION E-MAILED
Apr 21, 2026 NPUB
PUBLISHED FOR OPPOSITION
Apr 21, 2026 PUBO
NOTIFICATION OF NOTICE OF PUBLICATION E-MAILED
Apr 15, 2026 NONP
APPROVED FOR PUB - PRINCIPAL REGISTER
Mar 23, 2026 CNSA
EXAMINER'S AMENDMENT ENTERED
Mar 23, 2026 XAEC
NOTIFICATION OF EXAMINERS AMENDMENT E-MAILED
Mar 23, 2026 GNEN
EXAMINERS AMENDMENT E-MAILED
Mar 23, 2026 GNEA
EXAMINERS AMENDMENT -WRITTEN
Mar 23, 2026 CNEA
ASSIGNED TO EXAMINER
Mar 20, 2026 DOCK
NEW APPLICATION OFFICE SUPPLIED DATA ENTERED
Feb 12, 2026 NWOS
APPLICATION FILING RECEIPT MAILED
Nov 10, 2025 MAFR
NEW APPLICATION ENTERED
Nov 10, 2025 NWAP
