Granted Patent
Utility
US 6,746,764 · App. 10/074,113
Self-adhering surface covering and method of making
Inventor:
Kean M. Anspach
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Feb 11, 2002
Inventor
Kean M. Anspach
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.