Granted Patent
Utility
US 4,844,443 · App. 07/108,884
Simplified registration gate
Inventor:
R. Winfield Trafton
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Oct 16, 1987
Inventor
R. Winfield Trafton
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.