Granted Patent
Utility
US 4,396,902 · App. 06/165,992
OCR/Variable head slot reader
Inventors:
Jerry G. Warthan, Robert M. McMillan
Patented Case
View Patent ↗
Granted: Aug 2, 1983
Filed: Jul 7, 1980
Inventors
Jerry G. Warthan
Robert M. McMillan
Assignee (at issue)
Recognition Equipment Incorporated
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.