Granted Patent
Utility
US 4,843,220 · App. 07/025,482
Automatic data capture for multiple form point of sale slip packs
Inventor:
Marion W. Haun
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Mar 13, 1987
Inventor
Marion W. Haun
Assignee (at issue)
American Magnetics, 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.