Granted Patent
Utility
US 6,494,400 · App. 09/696,505
Automatic film roll changer and method of operating the same
Inventors:
Marco Zitella, Faruk Turfan
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Oct 25, 2000
Inventors
Marco Zitella
Faruk Turfan
Assignee (at issue)
ILLINOIS TOOL WORKS 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.