Granted Patent
Utility
US 5,559,313 · App. 08/370,778
Categorization of purchased items for each transaction by a smart card
Inventors:
David Michael Claus, Kevin D. Murphy, Wanda Green Thompson
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: Dec 23, 1994
Inventors
David Michael Claus
Kevin D. Murphy
Wanda Green Thompson
Assignee (at issue)
LUCENT TECHNOLOGIES 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.