Granted Patent
Utility
US 4,847,474 · App. 07/142,974
Method and apparatus for reading a bar code
Inventors:
Steven J. Engel, Kurt B. Augenblick, Lesley M. Freed, Charles T. Coffey, Paul C. Dryden
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Jan 12, 1988
Inventors
Steven J. Engel
Kurt B. Augenblick
Lesley M. Freed
Charles T. Coffey
Paul C. Dryden
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.