Granted Patent
Utility
US 4,833,609 · App. 07/063,601
ERC with operator prompting for entering quantity of selected multi-item packaged goods
Inventor:
James M. Grulke, Jr.
Patented Case
View Patent ↗
Granted: May 23, 1989
Filed: Jun 18, 1987
Inventor
James M. Grulke, Jr.
Assignee (at issue)
NCR Corporation
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.