Granted Patent
Utility
US 5,142,589 · App. 07/632,010
Method for repairing images for optical character recognition performing different repair operations based on measured image characteristics
Inventors:
Robert M. Lougheed, James C. Beyer
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Dec 21, 1990
Inventors
Robert M. Lougheed
James C. Beyer
Assignee (at issue)
Environmental Research Institute
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.