Granted Patent
Utility
US 4,686,581 · App. 06/764,295
Document scanning system
Inventors:
Charles W. Spehrley, Jr., Gary W. Schneider, Curtis A. Lipkie, Dean H. Cranston
Patented Case
View Patent ↗
Granted: Aug 11, 1987
Filed: Aug 9, 1985
Inventors
Charles W. Spehrley, Jr.
Gary W. Schneider
Curtis A. Lipkie
Dean H. Cranston
Assignee (at issue)
ANA Tech 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.