ALEXANDRIA, Va., May 7 -- The United States Patent and Trademark Office (USPTO) published about the trademark 'DUROGUARDRR' in its latest official gazette. The trademark application with the serial number 99488951 was filed on Nov. 10, 2025.
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Goods and Services: 4 - Locomotive engine oil; Lubricating oil, namely, governor oil; Lubricating oil, namely, journal oil; Lubricating greases for locomotive parts
International/US Class(es): 4
Mark Drawing Code: 4 - STANDARD CHARACTER MARK
Current Owner(s): Signal Fluid Solutions, Inc. 3403 Niki Way Riverside CA California 92507 3 CORPORATION
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