Granted Patent
Utility
US 5,804,293 · App. 08/569,619
Coating composition for recording paper
Inventors:
Louis J. Nehmsmann, George E. Alderfer, Charles Hill
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Dec 8, 1995
Inventors
Louis J. Nehmsmann
George E. Alderfer
Charles Hill
Assignee (at issue)
PPG 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.