IP Library › Granted Patent US 5,188,874
Granted Patent Utility
US 5,188,874 · App. 07/765,878

Hybrid floor covering

Inventors: William J. Kauffman, George L. Lilley, David Ruch
Patented Case View Patent ↗
Granted: Feb 23, 1993 Filed: Sep 26, 1991
Inventors
William J. Kauffman
George L. Lilley
David Ruch
Assignee (at issue)
ARMSTRONG WORLD INDUSTRIES, INC.

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Quick Facts
Patent No.
US 5,188,874
App. No.
07/765,878
Filed
1991-09-26
Granted
1993-02-23
Kind
A