Granted Patent
Utility
US 5,424,521 · App. 07/852,552
Article checkout system with price parameter override capacity
Inventors:
Donald M. Wolfe, Jr., John C. Allard, Cuong Nguyen, Larry E. Axsom, Jerry D. Gabbard
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Mar 17, 1992
Inventors
Donald M. Wolfe, Jr.
John C. Allard
Cuong Nguyen
Larry E. Axsom
Jerry D. Gabbard
Assignee (at issue)
Checkrobot, 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.