Granted Patent
Utility
US 5,223,322 · App. 07/344,708
Decorative surface covering with controlled platelet layer orientation
Inventors:
Timothy D. Colyer, Cheryl W. Landers, Ralph W. Wright, Jr.
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Apr 28, 1989
Inventors
Timothy D. Colyer
Cheryl W. Landers
Ralph W. Wright, Jr.
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.