IP Library › Granted Patent US 1,143,442
Granted Patent S1
US 1,143,442 · App. 29/922,019 · Granted Aug 18, 2026

Floor cleaning system

Inventors: William Harrington (Newtown, CT); Robert F. Smith (Waterbury, CT)
Assignee: Unger Marketing International, LLC
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Quick Facts
Patent No.
US 1,143,442
App. No.
29/922,019
Granted
Aug 18, 2026
Kind
S1
Claims (1)

The ornamental design for a floor cleaning system, as shown and described.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 6, 2026
From: HARRINGTON, WILLIAM; SMITH, ROBERT F.
To: UNGER MARKETING INTERNATIONAL, LLC
Reel/Frame 074577/0176 →
Continuity (3)
Continuation 29802872 · Aug 9, 2021
Division 29771466 · Feb 23, 2021
Division 29692646 · May 28, 2019
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