Granted Patent
Utility
US 5,543,232 · App. 08/418,873
(Meth) acrylated aromatic polyester floor covering wear layer
Inventors:
Wendell A. Ehrhart, Songvit Setthachayanon
Patented Case
View Patent ↗
Granted: Aug 6, 1996
Filed: Apr 6, 1995
Inventors
Wendell A. Ehrhart
Songvit Setthachayanon
Assignee (at issue)
ARMSTRONG WORLD INDUSTRIES, INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.