Granted Patent
Utility
US 5,921,373 · App. 08/531,953
Cart management system
Inventors:
Keith Louis Amdahl, Dan L. Otterson, Christopher J. Rogney, Mark G. Bussey, Fred C. Zimmerman, Verne L. Severson
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Sep 21, 1995
Inventors
Keith Louis Amdahl
Dan L. Otterson
Christopher J. Rogney
Mark G. Bussey
Fred C. Zimmerman
Verne L. Severson
Assignee (at issue)
Smarte Carte, 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.