Granted Patent
Utility
US 4,694,182 · App. 06/834,286
Hand held bar code reader with modulated laser diode and detector
Inventor:
P. Guy Howard
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Feb 27, 1986
Inventor
P. Guy Howard
Assignee (at issue)
Spectra-Physics, 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.