Granted Patent
Utility
US 5,678,447 · App. 08/633,602
On-line web planarity measurement apparatus and method
Inventor:
Ernest A. Graff
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Apr 17, 1996
Inventor
Ernest A. Graff
Assignee (at issue)
EASTMAN KODAK COMPANY
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.