Granted Patent
Utility
US 5,340,971 · App. 07/761,123
Automatic bar code reading system having selectable long range and short range modes of operation
Inventors:
George B. Rockstein, David M. Wilz, Sr., Robert Blake, C. Harry Knowles
Patented Case
View Patent ↗
Granted: Aug 23, 1994
Filed: Sep 17, 1991
Inventors
George B. Rockstein
David M. Wilz, Sr.
Robert Blake
C. Harry Knowles
Assignee (at issue)
METROLOGIC INSTRUMENTS, 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.