Granted Patent
Utility
US 5,325,447 · App. 07/769,740
Handwritten digit normalization method
Inventor:
Robert Vogt
Patented Case
View Patent ↗
Granted: Jun 28, 1994
Filed: Oct 2, 1991
Inventor
Robert Vogt
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.