Granted Patent
Utility
US 5,212,739 · App. 07/875,000
Noise tolerant optical character recognition system
Inventor:
Dan S. Johnson
Patented Case
View Patent ↗
Granted: May 18, 1993
Filed: Apr 24, 1992
Inventor
Dan S. Johnson
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.