Granted Patent
Utility
US 5,693,693 · App. 08/348,014
Bar code printing and scanning using wax based invisible fluorescent inks
Inventors:
Judith D. Auslander, William Berson
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Dec 1, 1994
Inventors
Judith D. Auslander
William Berson
Assignee (at issue)
Pitney Bowes 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.